In the past, if you broke or lost your phone, your Signal message history was gone. This has been a challenge for people whose most important conversations happen on Signal. Think family photos, sweet messages, important documents, or anything else you don’t want to lose forever. This explains wh...| Signal Messenger
Signal Desktop now includes support for a new “Screen security” setting that is designed to help prevent your own computer from capturing screenshots of your Signal chats on Windows. This setting is automatically enabled by default in Signal Desktop on Windows 11. If you’re wondering why we’re on...| Signal Messenger
If you love group calls on Signal, but don’t want to create a group chat for every combination of your friends or colleagues, you’re in luck. Today we’re launching call links: Share a link with anyone on Signal and in just a tap or click they can join the call. No group chat required. Read more...| Signal Blog
Several countries have recently blocked Signal, leaving their residents without a trusted and safe place to communicate. To help in this situation, Signal provides a built-in censorship circumvention feature and also includes support for a simple TLS proxy that can bypass these blocks in many circumstances and let people communicate privately. Read more...| Signal Blog
New long-sleeve shirts and tote bags fresh from the Signal test kitchen: We build Signal for people all over the world. So, of course we wanted to reflect that same global outlook in our merch. Read more...| Signal Blog
You should be able to communicate without worrying that every gossip tidbit, meme, or joke you share and who you share it with will get churned up into fodder for targeted ads or used to train an AI model. You also shouldn’t have to strip your communications down to the barest and most utilitarian version of relaying information. This is why Signal is dedicated to providing a truly private messaging app, and why we work to constantly make the experience better for everyone who uses it. We w...| Signal Blog
For many years, the Signal app on Android has supported sending and receiving plaintext SMS and MMS messages in addition to Signal messages. SMS and MMS are standardized communication protocols that allow mobile devices to send and transmit messages, and most people picking up their phone to text or share memes don’t really think about them. To give some context, when we started supporting SMS, Signal didn’t exist yet. Our Android app was called TextSecure and the Signal encryption protoc...| Signal Blog
On September 12 I’ll be stepping into the role of Signal’s President, a new position created in collaboration with Signal’s leadership. I am thrilled, and I can’t think of a more meaningful use of my time, or a greater honor. I’ve been a friend, admirer, and champion of Signal since it was RedPhone and TextSecure, and in 2020 I joined Signal’s Board of Directors, helping inform high-level strategy and direction. So in many ways this is a happy step on a long continuum, not a drama...| Signal Blog
People around the world count on Signal for things as simple as sharing moments of celebration like a graduation or as high stakes as coordinating a protest. We’ve got your back no matter what! As we’ve seen in recent times from moments of civil unrest to demonstrations for democracy, people turn to Signal for private and even lifesaving communications. Day in and day out, the team at Signal is working to keep your chats, voice, and video calls safe and private. It’s our mission. It’s...| Signal Blog
Millions of people worldwide rely on Signal every day for secure and private communication. Some of these people change their phone number, but want to continue using Signal without registering for a new account. We now provide the ability to change the phone number on your Signal account, while retaining all of your chats, profile information, and groups. Read more...| Signal Blog
As the norms for how people connect have changed, much of the communication that once took place through the medium of coffee shops, bars, and parks now takes place through the medium of digital devices. One side effect of this shift from analog to digital is the conjoined shift from the ephemeral to the eternal: words once transiently spoken are now – more often than not – data stored forever. We’ve designed Signal so that your data always stays in your hands. We think there’s someth...| Signal Blog
As the world stands today, the future of transaction privacy does not look great. The existing landscape is dominated by traditional credit companies, who over the past decade have been steadily pushing their networks for increased access to user data. They (and their data customers) are on a track to getting SKU level data of every purchase everyone makes everywhere. There are other contenders, such as regional online payments networks (like Venmo in the US), but the data story there is simi...| Signal Blog
The latest Signal betas are rolling out today. Inside, you’ll find performance enhancements, a slew of bug fixes, improvements to the mute settings, and if you’re in the United Kingdom, you’ll see support for Signal Payments – a new feature that enables you to send and receive privacy focused payments as easily as sending or receiving a message. This is a beta feature in a beta build, but for those in the United Kingdom living life on the edge, please help us test and give feedback. R...| Signal Blog
We recently released a new version of Signal groups with group admins, @mentions, permissions, and more. Today we’re adding one more feature into the mix: group links, which let you quickly create a link that anyone can follow to join your group. Like our other new group features, you can create a new group to try it out now, but these features will be coming soon to your existing Signal groups. Read more...| Signal Blog
Signal has always benefitted from our engaged and supportive community, and wouldn’t be what it is without your input and feedback. As the number of people using Signal has grown, so have our efforts to keep pace with what people expect from a messaging app, and where we might find new opportunities for Signal. Software companies typically overflow with data that explains the past and forecasts possible futures. They know exactly who is doing what with their products, how often, and where. ...| Signal Blog
Now that voice and video calls are available for everyone on Signal Desktop and iPad, in addition to our mobile clients, we want to share a closer look at the technology that makes it possible for incoming calls to ring across multiple devices. Every call placed on Signal has always been private and end-to-end encrypted, but we previously supported only calls to or from one primary device per person. Now, you can make and receive secure audio and video calls from the devices in your pocket, o...| Signal Blog
Whether it’s staying in touch with family and friends, planning a party, scheduling an event, getting work done, or organizing for change, group chats are an increasingly important part of Signal. Today we’re releasing a new version of Signal groups that gives you a richer private group experience with group admins, granular permissions, @mentions and more. If you’re excited to try out these features now, you can create a new group to do so. These features will be coming soon to your ex...| Signal Blog
Update: This feature is now available in production. The latest beta release of Signal Desktop includes preliminary support for one-to-one voice and video calls. Call your friends and family on macOS, Windows, and Linux; see their smiles on a larger screen; hear their laughter through the big speakers on your desk; and help us test the next generation of calling on Signal. Beta users get an early chance to evaluate call quality and performance while we continue to improve the interface and wo...| Signal Blog
It’s been about two weeks since we announced an initiative to distribute versatile face coverings to help support everyone who is self-organizing for change in the streets. Since then, we’ve shipped over $25,000 worth of face coverings to organizers throughout the United States. Over $6,000 worth of merchandise was sent to Washington D.C. last week in time for the Juneteenth events in the heart of the city. We continue to be inspired by the energy and enthusiasm that is helping to shape c...| Signal Blog
The world was a different place when we announced message reactions back in February, but expressing the way you feel has never been more important. Instead of being limited to the default set of reactions that we started with, the latest Signal updates for Android, Desktop, and iOS let you react with even more emoji. Read more...| Signal Blog
At Signal, our goal is to build a reliable, secure, and private communication experience that is broadly accessible and simple to use. From the beginning, we’ve designed Signal so that your information is in your hands rather than ours. Read more...| Signal Blog
Over the past several weeks, Signal traffic has gone through the roof. New users are signing up at unprecedented rates, and we’ve expanded our server capacity faster than we ever anticipated. It means a lot to us that so many people are relying on Signal during this difficult time. When users check in on their families, share moments of solace, smile with their friends, or discuss sensitive health issues with their doctors, Signal’s end-to-end encryption and privacy-preserving technology ...| Signal Blog
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We announced support for stickers in Signal less than two months ago. Since then, over five thousand sticker packs have been uploaded. Today we are officially adding two more: Hands and Faces by Swoon. Read more...| Signal Blog
When you’re standing next to a friend who says something funny, you can just laugh. You don’t need to pause and say “I found what you just said humorous” or quote their own words back to them before displaying a real-world emoji on your face. This feeling of immediacy and effortless response is what reactions are all about. They’re a quick way to share your take on any message, and you can try them today in the latest Signal beta. Read more...| Signal Blog
Registration Lock allows you to set a PIN that is required for account registration in addition to standard SMS-based verification. Today’s Signal beta release enhances the security of these PINs by transitioning them to use Secure Value Recovery. Read more...| Signal Blog
Today’s beta releases of Signal for Android and iOS include a new way to send individual photos and videos that are automatically removed from a conversation thread after they have been viewed. Read more...| Signal Blog
Signal 3.0 is now available in the App Store: iPad support has arrived. Set up your favorite tablet as a linked device. Forward messages between threads. Editing support lets you amend, extend, append, explain what you intend, or tie up loose ends before you hit send. Built-in support for video trimming can help any clip turn into a highlight. Tap on someone’s avatar in a group conversation to quickly message or call them. While the group agonizes over dinner plans, subtly exert your influe...| Signal Blog
The latest releases of Signal for Android, Desktop, and iOS are rolling out now with the ability to send optional link previews. This feature is built on the same foundation that has powered Signal’s animated GIF search for more than two years and that we have since expanded with additional privacy enhancements. We’re launching link previews with initial support for Imgur, Instagram, Reddit, and YouTube. These are four of the most popular sites on the Internet and their heavy focus on vis...| Signal Blog
Like many others, we have been following the latest developments in Australia related to the “Assistance and Access” bill with a growing sense of frustration. The widespread adoption of strong cryptography and end-to-end encryption has given people around the world the ability to protect their personal information and communicate securely. Life is increasingly lived online, and the everyday actions of billions of people depend on this foundation remaining strong. Attempting to roll back t...| Signal Blog
Last week, we received the following email from Amazon: From: [redacted], [redacted] <[redacted]@amazon.com> Subject: Notification of potential account suspension regarding AWS Service Terms Moxie, Yesterday AWS became aware of your GitHub and Hacker News/ycombinator posts describing how Signal plans to make its traffic look like traffic from another site, (popularly known as “domain fronting”) by using a domain owned by Amazon -- Souq.com. You do not have permission from Amazon to use So...| Signal Blog
In collaboration with Signal, Microsoft is introducing a Private Conversations feature in Skype, powered by Signal Protocol. Read more...| Signal Blog
Today’s Signal beta for iOS includes support for animated GIF search. Signal iOS has long supported sending and receiving GIFs, but today’s beta adds support for browsing and searching popular GIFs from within Signal. We previously announced experimental support for animated GIF search in Signal Android, which we’re now bringing to iOS, along with some privacy updates to the process. Read more...| Signal Blog
Signal Desktop is now available in a new, standalone form, and the Chrome App has been deprecated. Read more...| Signal Blog
Today’s beta release of Signal for Android and iOS includes support for read receipts. This is an optional new feature that gives you the ability to see and share when messages have been read. Something tells us that you might find this useful… Read more...| Signal Blog
The latest Signal beta includes some changes to the way safety numbers work. Back in November, we introduced experimental support for “advisory” safety number changes, with the objective of collecting feedback in order to eventually make this the default experience. We’ve taken the feedback we’ve received over the past six months and incorporated it into a set of changes that we’re releasing into beta today. Read more...| Signal Blog
We recently released encrypted video calling as an opt-in beta. We’ve spent the past month collecting feedback and addressing the issues that the Signal community found in order to get it ready for production. Today’s Signal release for Android and iOS enables support for end-to-end encrypted video calls by default, which also greatly enhances the quality of Signal voice calls as well. We think it’s a big improvement, and hope you will to. Read more...| Signal Blog
Today, The Guardian published a story falsely claiming that WhatsApp’s end-to-end encryption contains a “backdoor.” Read more...| Signal Blog
The latest Signal for Android release includes support for adding doodles, stickers, and text to images. This release also includes support for censorship circumvention in Egypt and the United Arab Emirates. Read more...| Signal Blog
The latest Signal release for Android includes support for GIF search and browsing. Signal has long supported sending and receiving GIFs, but this is an experiment that allows users to browse, search, and select popular GIFs from within Signal. Read more...| Signal Blog
The latest Signal release for iPhone, Android, and Desktop now includes support for disappearing messages. The timer has come With this update, any conversation can be configured to delete sent and received messages after a specified interval. The configuration applies to all parties of a conversation, and the clock starts ticking for each recipient once they’ve read their copy of the message. Read more...| Signal Blog
The latest Signal for iPhone release now includes multi-device support, allowing you to seamlessly move your private messaging experience from your iPhone to your desktop computer and back. Once you’ve linked a desktop client from within the Signal iPhone app, you can switch to the desktop at any time, whether your phone is online or not. The Signal Desktop app also supports a new iOS theme, which is enabled by default whenever you link a desktop client from the Signal iPhone app. Try it out!| Signal Blog
We recently received a great bug report from Jean-Philippe Aumasson and Markus Vervier, who identified a problem with the way that image, audio, and video attachments are processed by the Signal for Android code. We consider the implications of the bug to be low risk to Signal users, but have released an update for the Signal Android app that addresses the problems they reported. Read more...| Signal Blog
Signal Protocol is a modern, open source, strong encryption protocol for asynchronous messaging systems. We use Signal Protocol as the foundation for our own private messaging app, Signal, but also make Signal Protocol libraries available for other applications to use. Our Signal Protocol libraries are open source, licensed GPLv3. We like the GPL for the quality control that it provides. If someone publicly says that they’re using our software, we want to see if they’ve made any modificat...| Signal Blog
For the past few months, the Signal Desktop beta has been available through an invitation program. We’ve gotten a lot of feedback, made a lot of improvements, and are now ready to open the beta up for public access. Read more...| Signal Blog
A few months ago we completed the process of unifying all of our apps across Android, iOS, and the Desktop under the name ‘Signal.’ This simplified the language around our apps and eliminated a lot of confusion. Now we’re doing the same thing “inside” our apps by renaming Axolotl to Signal Protocol. Axolotl has been the name of the cryptographic protocol that our apps use for end-to-end encryption, but it’s not the easiest word to pronounce. Sometimes people use ‘Axolotl’ to r...| Signal Blog
Today we’re making the Signal Desktop beta available. Signal Desktop brings the trusted private messaging experience of Signal to the desktop, with a simplicity that allows you to seamlessly continue conversations back and forth between your mobile device and your desktop computer. Read more...| Signal Blog
Today we’ve started rolling out Signal for Android, which unites simple private messaging and simple private calling into a single app on Android. This is the culmination of our effort to combine TextSecure and RedPhone into one app, which we began on iPhone and are now bringing to completion on Android. Read more...| Signal Blog
After immersing myself for years and years in the world of finance (specifically, options market making and algorithmic trading), there was no escaping this mantra of “no risk, no reward.” Most of the time, my (trading) style was fairly risk-averse. I knew how to find the signals of opportunities among the daily noise to reap small rewards. Fortunately, I also learned how to think about the outliers and to take the occasional big but calculated risks. Read more...| Signal Blog
It’s 2015, and the end of the road for encrypted SMS/MMS in TextSecure. The TextSecure story started back in 2009, at the dawn of the smartphone era. Back then, TextSecure focused on securing the transport that everyone coming from feature phones was familiar with: SMS. Today, many things have changed, and TextSecure now emphasizes the “TextSecure transport,” which uses data rather than SMS. While we remain committed to supporting plaintext SMS/MMS in addition to the encrypted TextSecur...| Signal Blog
Winter Break Of Code Day Nineteen I recently had the opportunity to listen to another amazing podcast from 99% Invisible, a program about “design, architecture and the 99% invisible activity that shapes our world.” It got me thinking about how my world is shaped by the way I engage with computers. The podcast is a story about a computer scientist named Doug Engelbart who was, in essence, a crazy brilliant genius. He thought of ways to change how we interacted with computers and, most famo...| Signal Blog
Winter Break Of Code Day Eighteen Late this afternoon I took a break from working to surf. The sun was setting and a cool breeze was picking up as grey clouds billowed behind the mountains along Hanalei Bay. I had spent most of the day wrangling content, markup, and CSS, and the Pacific was calling. There was still plenty of work to be done, but balance is important, and my mind needed to reset. Surfing would be today’s lesson. Read more...| Signal Blog
Winter Break Of Code Day Seventeen In this life nearly every relationship we create and maintain is built upon expectations. You do this, I’ll do that, and together we’ll fail to oppose entropy but stand a chance at plotting and navigating a loose course through it. These expectations extend beyond the individual, past the family, and onto society. Read more...| Signal Blog
A post from Natalie, Winter Break Of Code, Day Sixteen Today, I watched sunlight dance atop billowing waves, a natural circus spectacular. I meditated on two syllables, allowing my breath and heartbeat to synchronize, and I too became a part of the show. Read more...| Signal Blog
Winter Break Of Code, Day Fifteen The 1988 film They Live is one of the last great masterpieces to come out of the Hollywood left. In the film, a drifter named John Nada discovers a box of sunglasses that, when worn, allows the wearer to really see the world around him. For instance, when wearing the glasses, simple advertisements for consumer products are revealed as something other than what they appear. Read more...| Signal Blog
Winter Break Of Code Day Fourteen When I agreed to take part in Winter Break of Code, I had no idea what to really expect. While many people questioned my choice to spend my winter vacation writing code, I was excited for the opportunity to spend a week hanging out with an eclectic group of people while doing two of my favorite things: coding and surfing. Read more...| Signal Blog
Winter Break Of Code Day Thirteen My ten-year-old mind was completely blown when I realized that I could eavesdrop on the walkie-talkie conversations of the other kids in my neighborhood. I rode my bike to the library in stunned silence, found a book about codes and puzzles, and raced home to my computer. I reluctantly transformed QBasic into something other than a conduit for modified games of NIBBLES.BAS and GORILLA.BAS, and wrote a Caesar cipher implementation that worked in both direction...| Signal Blog
Winter Break Of Code Day Twelve A few days ago, someone suggested that we go scuba diving and I said “yeah sure, that sounds fun”. Once we actually got to the dive site I realized I had no clue what I signed up for. I was scared out of my fucking mind, squirming against the ocean’s currents, and convinced I would have to go back to shore while everyone else had fun since I was too much of a wuss. It took some time and a fair amount of patience from my dive instructor before I even made ...| Signal Blog
Winter Break Of Code Day Eleven Every morning at standup I’d watch the knife spin in slow motion, dread filling my chest and a voice in my head repeating, over and over, “not Slytherin.” (The target of the knife is the author of the next day’s blog post). I wasn’t sure that I could find new ways to marvel at the wonderful absurdity of stepping on a plane and trading reality for this – a chance to work on the world with a group of people that I’ve only admired from afar. I wasn...| Signal Blog
Winter Break of Code Day Ten A couple of days ago, Jake, one of the brilliant full-timers on Open Whisper Systems, looked up from his laptop and asked me with a smile, “So, Yoko, what’s your life story? How did you come to love humans so much?” It was a whimsical way of asking why I do what I do and why I am here. Having studied Human Computer Interaction and being a user experience (UX) designer, I’ve been asked variations of this question many times before. But it was on this trip I...| Signal Blog
Winter Break Of Code Day 9 Today we hiked the Kalalau Trail and swam beneath the cold spray of a waterfall. Today we discussed the finer points of the axolotl protocol used by TextSecure. Today we delighted in “shave ice”, a local delicacy that is definitely not a snow cone. Today we wrote copy, polished features, closed bugs, and merged pull requests. Measured by lines of code, today was short. Measured by steps taken, it was tall. Measured by ideas discussed, things learned, and sights ...| Signal Blog
With Signal on Desktop and iPad, you can link your primary Android or iOS account with another device, letting you check and respond to messages in both places or conduct video meetings and calls from the comfort of a bigger screen. Signal’s upcoming beta releases will also introduce the option t...| Signal Messenger
Signal’s mission and sole focus is private communication. For years, Signal has kept your messages private, your profile information (like your name and profile photo) private, your contacts private, and your groups private – among much else. Now we’re taking that one step further, by making your...| Signal Messenger
At Open Whisper Systems, we’ve been working on improving our encrypted asynchronous chat protocol for TextSecure. The TextSecure protocol was originally a derivative of OTR, with minor changes to accommodate it for transports with constraints like SMS or Push. Some of the recent changes we’ve ...| Signal Messenger
Companies like Facebook aren’t building technology for you, they’re building technology for your data. They collect everything they can from FB, Instagram, and WhatsApp in order to sell visibility into people and their lives. This isn’t exactly a secret, but the full picture is hazy to most – dim...| Signal Messenger
2020 has seen its fair number of challenges and changes. We’ve all adapted to new ways of staying in touch, getting work done, celebrating birthdays and weddings, and even exercising. As more and more of our critical and personal moments move online, we want to continue to provide you with new wa...| Signal Messenger
One immediate thing seems clear about 2020: it’s a good year to cover your face. Online, we’re working to scale and improve Signal for everyone that is relying on it, but as one small offline way to help support everyone self-organizing for change in the streets, we’re also distributing face cove...| Signal Messenger
Signal is the world’s most widely used truly private messaging app, and our cryptographic technologies provide extra layers of privacy beyond the Signal app itself. Since launching in 2013, the Signal Protocol—our end-to-end encryption technology—has become the de facto standard for private commu...| Signal Messenger
Facebook Messenger has started rolling out Secret Conversations, a feature that enables end-to-end encryption for conversations within Messenger. Secret Conversations is built on Signal Protocol, a modern, open source, strong encryption protocol we developed for asynchronous messaging systems.| Signal Messenger
At Open Whisper Systems, our goal is to make private communication simple. The foundation of our technology is Signal Protocol, a modern, open source, strong encryption protocol for asynchronous messaging systems. It is built from the ground up to make seamless end-to-end encrypted messaging poss...| Signal Messenger
As of our latest Android release, Signal builds are reproducible. Reproducible builds help to verify that the source code in our GitHub repository is the exact source code used to build the compiled Signal APK being distributed through Google Play.| Signal Messenger
Today we’re releasing Signal 2.0, with support for TextSecure private messaging. It is now possible to send end-to-end encrypted group, text, picture, and video messages between Signal on iPhone and TextSecure on Android, all without SMS and MMS fees. Signal 2.0 blends private phone calls and pri...| Signal Messenger
The Signal Protocol is a set of cryptographic specifications that provides end-to-end encryption for private communications exchanged daily by billions of people around the world. After its publication in 2013, the Signal Protocol was adopted not only by Signal but well beyond. Technical informat...| Signal Messenger
Signal exists to provide people everywhere with a tool for real private communication. That’s our only goal, and we take it very seriously. We’re structured as a nonprofit to ensure that market forces can never put profit or expediency over the safety of those who rely on us. Our work also resona...| Signal Messenger
Cellebrite makes software to automate physically extracting and indexing data from mobile devices. They exist within the grey – where enterprise branding joins together with the larcenous to be called “digital intelligence.” Their customer list has included authoritarian regimes in Belarus, Russi...| Signal Messenger
The tech industry–its products, conceptual frameworks, linguistic conventions, and cultural norms–is largely centered in the US (and, increasingly, China. But we’re focused here on the US, where Signal is based). This is not because the US has better programmers or more visionary entrepreneurs, b...| Signal Messenger
If your favorite way to update your friends about life disappears in 24 hours, we’ve got some happy news for you. Stories are now available on Signal for Android and iOS, with Desktop coming soon!| Signal Messenger
Signal is currently blocked in Iran. To help people in the country access Signal, we are republishing and revising a post that we originally posted in February, 2021 during a very similar situation in Iran. If you are willing and able, please follow the instructions below to set up a proxy server...| Signal Messenger
Private doesn’t mean lonely. Signal’s mission is to help you connect with people in a secure way. This means that you need to know which of your contacts are also on Signal. This is called “contact discovery” and it’s an essential part of any messaging app. Most other communications apps enable c...| Signal Messenger
It’s a new year, and I’ve decided it’s a good time to replace myself as the CEO of Signal. I have now been working on Signal for almost a decade. It has always been my goal for Signal to grow and sustain beyond my involvement, but four years ago that would still not have been possible. I was writ...| Signal Messenger
Signal released end-to-end encrypted group calls a year ago, and since then we’ve scaled from support for 5 participants all the way to 40. There is no off the shelf software that would allow us to support calls of that size while ensuring that all communication is end-to-end encrypted, so we bui...| Signal Messenger
Signal has no data to sell, no advertisers to sell it to, and no shareholders to benefit from such a sale. We’re building a different kind of tech – where your data stays in your hands – but we’re also building a different kind of tech organization. One without investors, quarterly earnings calls...| Signal Messenger
The phenomenon of unsolicited and unwanted messaging dates back to the earliest communication platforms: from prehistoric cave graffiti and postal chain letters to popup ads and robocalls. To prevent spam, most online services rely on large-scale inspection of plaintext conversation content or de...| Signal Messenger
At Open Whisper Systems, our goal is to make private communication simple. A year ago, we announced a partnership with WhatsApp and committed to integrating the Signal Protocol into their product, moving towards full end-to-end encryption for all of their users by default. Over the past year, we...| Signal Messenger
At Open Whisper Systems, we’ve been developing open source “consumer-facing” software for the past four years. We want to share some of the things we’ve learned while doing it. As a software developer, I envy writers, musicians, and filmmakers. Unlike software, when they create something, it is...| Signal Messenger
The latest Signal release includes some changes to the way safety numbers work. Safety numbers allow Signal users to verify the privacy of their communication with a contact, either by comparing a number or by scanning a single QR code. We recently introduced this new design as an update to Sign...| Signal Messenger
Today’s Signal release for Android and iOS includes beta support for video calls. This represents an entirely new calling infrastructure for Signal, and should increase voice call quality as well. We think it’s a big improvement, but we’re rolling it out in stages to collect feedback from people ...| Signal Messenger
The latest Signal beta for Android and iOS introduces support for Signal Profiles. Profiles allow you to add a picture and display name that will be shown alongside your existing phone number when communicating with other users. Conversations will feel more personal. Group threads will be less co...| Signal Messenger
At Signal, we’ve been thinking about the difficulty of private contact discovery for a long time. We’ve been working on strategies to improve our current design, and today we’ve published a new private contact discovery service. Using this service, Signal clients will be able to efficiently and s...| Signal Messenger
Long before we knew that it would be called Signal, we knew what we wanted it to be. Instead of teaching the rest of the world cryptography, we wanted to see if we could develop cryptography that worked for the rest of the world. At the time, the industry consensus was largely that encryption and...| Signal Messenger
In addition to the end-to-end encryption that protects every Signal message, the Signal service is designed to minimize the data that is retained about Signal users. By design, it does not store a record of your contacts, social graph, conversation list, location, user avatar, user profile name, ...| Signal Messenger
Groups are inherently social, and Signal is a social app. Whether you’re planning a surprise party, discussing last night’s book club meeting, exchanging photos with your family, or organizing something important, group messaging has always been a key feature of Signal. Signal provides private gr...| Signal Messenger
They get slapped on street signs. We wear them on our clothes to identify ourselves to distant coworkers during awkward holiday parties. Some people create massive galleries on their laptops in overlapping levels stacked so deep that the hinges begin to lose their structural integrity and LCD scr...| Signal Messenger
At Signal, we want to make privacy simple. From the beginning, we’ve designed Signal so that your information is in your hands rather than ours. Technologies like Signal Protocol secure your messages so that they are never visible by anyone but you and the intended recipients. Technologies like p...| Signal Messenger
Signal for Android now includes storage management functionality that helps visualize files across all of your conversations, sorted by size and type, in order to assist you in reducing the amount of space Signal uses on your device.| Signal Messenger
Right now, people around the world are marching and protesting against racism and police brutality, outraged by the most recent police murders of George Floyd and Breonna Taylor. At Signal, we support the people who have gone into the streets to make their voices heard. We believe that something ...| Signal Messenger
In the midst of world-wide protests against racism and police brutality, a lot of people are becoming more immediately aware and concerned about the security of their data and online communication. We’ve gotten a lot of questions at Signal over the past week, so we wanted to briefly recap how it ...| Signal Messenger
Signal iOS now includes a new feature that makes it possible to switch to a brand-new iPhone or iPad while securely transferring Signal information from your existing iOS device. As with every new Signal feature, the process is end-to-end encrypted and designed to protect your privacy. Transfers ...| Signal Messenger
Sometimes people dive into Signal’s code looking for domain names, and then they send us screenshots asking if they should be concerned: We reply with a short explanation that lays out why there’s nothing wrong, but we understand the confusion. Nobody would be excited about getting a grade like ...| Signal Messenger
The number of people who join Signal every day is still growing at a record pace. With so many new conversations getting started, we’ve heard from a lot of users that they’d like more control over how they begin. With message requests, when someone who isn’t in your contacts starts a new chat wit...| Signal Messenger