Update, Feb. 26, 2025: This story, originally published Feb. 23, now includes additional commentary regarding the potential security implications of the decision to deprecate SMS from the Gmail ...

A comprehensive developer guide to implementing secure authentication in modern applications. Covers OAuth 2.0, OIDC, passwordless authentication, passkeys, and enterprise SSO with production-ready ...

We've probably all received confirmation codes sent via text message when trying to sign into an account. Those codes are supposed to serve as two-factor authentication to confirm our identity and ...

Google has long offered SMS as an option to receive two-factor authentication codes for Gmail. However, there are risks associated with it. Criminals can easily intercept SMS verification and make you ...

First, turn on two-factor authentication for the account. You'll get a QR code or setup key. Next, open the Google Authenticator app and tap the plus sign. Record the 2FA code/key. Whenever you're ...