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Fob blog

Notes from the people building Fob.

Long-form pieces on tag-based authenticator design, end-to-end encrypted cloud backup, migration off Authy and Google Authenticator, and the decisions we made (and unmade) on the way to launch.

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June 20, 2026 5 min read

How to switch authenticator apps without getting locked out

migration switching apps

Moving to a new authenticator app feels risky because one wrong step can lock you out. Here is how to switch safely, one account at a time, without losing access.

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June 20, 2026 5 min read

Do you really need to back up your authenticator? A plain-English answer

backup getting started

Short answer: yes. Here is the plain-English reason why, plus how to tell whether your authenticator app actually has your back or quietly leaves you exposed.

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June 20, 2026 6 min read

How to back up your 2FA codes so you never lose them when you switch phones

recovery lost phone

Switching phones can lock you out of every account. Here is how to back up your 2FA codes safely, and how to get back in if you already lost your old phone.

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