Totp

A USB security key and a phone showing a six-digit verification code on a desk, with an open padlock in the background — multi-factor authentication as a second door

Your password has been compromised: why only MFA truly protects you

When a breach happens, no password — however strong — is safe. The only measure that actually works requires the attacker to have something else you physically hold in your hands: that is multi-factor authentication (MFA). I explain what it is, why SMS is not enough, and how to choose it well.