Rcs.is accounts with email and password sign-ins and no 2FA are protected with device verification by default. Each time you sign in from a new location using a new device or a different web browser, we email an authorization code to the email address you use to sign in or send an SMS to the phone number you provided.

You may be required to enter a verification code each time you sign in if you use an ad blocker. You may be asked to verify your browser from a trusted location and device if you have deleted cookies for Rcs.is or you have disabled cookies entirely.

To allow your browser to be recognized, you can allowlist the verification domain, siftscience.com or pause ad blocking on *.Rcs.is.