Macworld The social media network formerly known as Twitter has announced that it is retiring the Twitter.com domain on November 10. That probably won’t mean much to most people’s day-to-day use, with one big exception: security. The X Safety account posted a message that says users who use a physical security key or virtual passkey as their two-factor authentication (2FA) method will need to re-enroll their key to continue accessing the site. After November 10, the account reports, accou...