A hardware security key is a physical gadget—like a USB stick—that gives you an extra layer of security through multifactor authentication (MFA). When you sign in to certain services, you’ll plug it ...

Any account on X that uses a security key will need to re-enroll it. You can do this through security settings on the X website or app. The move is necessary due to the retirement of the twitter.com ...

X is warning that users must re-enroll their security keys or passkeys for two-factor authentication (2FA) before November 10 or they will be locked out of their accounts until they do so. In a series ...

Microsoft warned users on Tuesday that FIDO2 security keys may prompt them to enter a PIN when signing in after installing Windows updates released since the September 2025 preview update. This ...