Locking Down the WordPress Login Page
Learn how to strengthen your WordPress login security to prevent unauthorized access and protect your website assets.| Sucuri Blog
Vulnerability reports and responsible disclosures are essential for website security awareness and education. Automated attacks targeting known software vulnerabilities are one of the leading causes of website compromises. To help educate website owners about potential threats to their environments, we’ve compiled a list of important security updates and vulnerability patches for the WordPress ecosystem this past month. The vulnerabilities listed below are virtually patched by the Sucuri Fi...| Sucuri Blog
Learn how to strengthen your WordPress login security to prevent unauthorized access and protect your website assets.| Sucuri Blog
Find out how malicious JavaScript injects suspicious content and affects website safety, revealing critical security concerns.| Sucuri Blog
Vulnerability reports and responsible disclosures are essential for website security awareness and education. Automated attacks targeting known software vulnerabilities are one of the leading causes of website compromises. To help educate website owners about potential threats to their environments, we’ve compiled a list of important security updates and vulnerability patches for the WordPress ecosystem this past month. The vulnerabilities listed below are virtually patched by the Sucuri Fi...| Sucuri Blog
So, your support team is suddenly flooded with tickets about “421 Misdirected Request” errors, and you’re wondering if the internet is just having a bad day. Spoiler: it’s not. But Apache might be. Let’s break down what’s going on, why it’s happening now, and how to fix it—whether you’re using Plesk, cPanel, or flying solo with your own Apache setup. What Is a 421 SNI Error Anyway? The HTTP 421 “Misdirected Request” error is Apache’s way of saying: “Hey, I wasn’t e...| Sucuri Blog
Learn about the dangers of a fake WordPress plugin that creates hidden admin accounts and compromises site security.| Sucuri Blog
Recently, our team uncovered a particularly sneaky piece of malware tucked away in a place many WordPress users don’t even know exists: the mu-plugins folder. In fact, back in March, we saw a similar trend with hidden malware in this very directory, as detailed in our post Hidden Malware Strikes Again: MU-Plugins Under Attack. This current infection was designed to be quiet, persistent, and very hard to spot. ./wp-content/mu-plugins/wp-index.php For those unfamiliar, mu-plugins stands for ...| Sucuri Blog
Explore the new Sucuri backups experience with enhanced features like additional frequency options and improved navigation.| Sucuri Blog
Protect your WordPress site from redirect malware. Understand the risks of GTM abuse and how to eliminate malicious scripts.| Sucuri Blog
Protect your site from WordPress malware. Learn how to identify and mitigate complex malware hidden in core files.| Sucuri Blog
Discover why a WordPress theme is a prime target for attacks. Learn methods to secure your site against theme-based threats.| Sucuri Blog
Find out how a Fake Java Update Popup could fool your users. Stay informed about website safety and plugin threats.| Sucuri Blog
Learn about website security, emerging vulnerabilities, and web malware infections from our team of website security researchers.| Sucuri Blog
LummaStealer trojan infections are on the rise, exploiting WordPress sites with fake verifications. Learn how it works and protect your site.| Sucuri Blog
What is a zero-day vulnerability? Learn what 0days are and how they get exploited with some examples. We include steps to protect your site.| Sucuri Blog
One of the most important monitoring tools in our security platform is our Sucuri SiteCheck scanner. It’s a free tool to scan your website for…| Sucuri Blog
Uncover the dangers of a malicious plugin that can steal admin credentials and compromise your WordPress site security.| Sucuri Blog
Learn about malware attacks and the underlying factors that influence hackers' choices beyond just evil intentions.| Sucuri Blog
Magento security patches are vital in 2025. Our guide covers their significance, installation, and how to stay updated with Adobe.| Sucuri Blog
There are at least 3 types of password attacks: brute force attacks, password spraying and credential stuffing. Find out how these attacks work.| Sucuri Blog
Find out how Sucuri traced a data breach back to Google Tag Manager on a Magento site and restored its security.| Sucuri Blog
Backdoors help attackers maintain unauthorized access to your website. Learn what a backdoor is, how to spot the latest types of malware, and steps you can take to remove them and protect your site.| Sucuri Blog
Learn what the Principle of Least Privilege is, how the PoLP is used to protect your website from unauthorized access and malicious behavior, and common WordPress user roles and file permissions to mitigate risk.| Sucuri Blog
Website owners need to enforce strong credentials for all user accounts, especially administrators. Learn how to create a strong password and protect your site from brute force attacks.| Sucuri Blog
Do you know what website backdoors are? In this post we clarify this concept and explain why leaving backdoors behind will increase the chance of having a site reinfected.| Sucuri Blog
Learn about the new fake Chrome browser update campaign that is being served from WordPress plugins. We explain how the malware works and mitigation steps.| Sucuri Blog
Learn about a JavaScript injection related to Sign1, a massive malware campaign targeting compromised websites. We dive into some common indicators of compromise, document the malware campaign history, and reveal the obfuscation techniques used to evade detection.| Sucuri Blog
Bad actors are using crypto drainers to monetize traffic to hacked sites. Our latest analysis starts with a brief overview of the threat landscape, Angel Drainer scan statistics, predecessors, and most recent variants of this and other website hacks that involve crypto drainers.| Sucuri Blog
What is lateral movement? Learn how malware can move laterally between your websites and how cross-contamination of your hosting and server environments occurs. We include prevention steps to secure your websites and accounts from hackers.| Sucuri Blog
Learn how to understand our free website security scanner and its limitations. Sitecheck works by scanning your website remotely for malware and anomalies.| Sucuri Blog
A detailed analysis of the notable ongoing NDSW/NDSX malware infection with steps on how to identify the telltale if(ndsw===undefined) clause and how clean up the malware from a compromised website.| Sucuri Blog
We describe the techniques we use to find website backdoors and give you advice on how to clean a compromised website: whitelisting, blacklisting, and anomaly checks.| Sucuri Blog
Learn about the fake Google Chrome update malware, a common form of website malware that tricks users into downloading a remote access trojan disguised as a browser update. Understand how it works, its impact on websites, and how to protect your site from such threats. Stay updated on the latest malware trends with Sucuri.| Sucuri Blog
