Tema: mfa

• MFA recovery codes: generating, storing and consuming them

  Recovery codes are look-up secrets: a small set of random, single-use codes issued when a second factor is enrolled, stored hashed like passwords, rate-limited, and consumed one at a time. They are the fallback when the phone or key is gone, so their issue, use and re-issue must be as guarded as the factor they replace.

  article · en · unreviewed · conhecimento em 2026-09-16

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