2FA methods supported by Signal
Signal offers the following two-factor authentication options to help protect your account.
SMS
Signal can send a one-time verification code to your phone via text message.
Phone call
Signal can call your phone and read out a verification code.
Signal 2FA — Frequently asked questions
Does Signal support an authenticator app?
No. Signal does not currently offer TOTP-based codes, but it does support SMS, Phone call.
Which two-factor authentication methods does Signal support?
Signal currently supports: SMS, Phone call.
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