Authentication
How to turn on two-factor in WhatsApp, Instagram and Gmail
Exactly where the two-step verification setting lives in the three most-stolen accounts, what order to enable it in, and what to save before you start.
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Two-factor authentication
The second lock: which method to pick, how to switch it on for the accounts you use daily, and how to recover them if you lose your phone.
Authentication
Verification codes by SMS you never asked for: what they mean
Getting a verification code when you are not logging in anywhere is not a system glitch: it is a warning. What each case means and what to do about it.
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Authentication
You lost the phone with your two-factor codes: how to get your accounts back
What to do when the phone generating your verification codes is lost, broken or stolen, and how to set things up today so it never becomes a crisis.
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Authentication
Two-factor authentication: what it is and which method suits you
SMS, an authenticator app or a physical key. What each one protects against, where each one fails, and the order in which to turn them on.
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Authentication
Passkeys: what they are, how they work and whether to switch now
Passkeys replace the password with your device's fingerprint or face. How they work, what they genuinely solve, and what happens if you lose your phone.
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