Why 2FA matters
Two-factor authentication adds a critical second proof-of-possession to your sign-in flow. It greatly reduces the chance of remote account takeover compared to password-only access.
1
Use an authenticator app
Apps like Authenticator or Authy produce time-based codes — more secure than SMS for most users.
2
Consider hardware keys
WebAuthn/U2F keys (YubiKey, etc.) offer phishing-resistant authentication ideal for high-value accounts.
3
Backup codes
Store printed backup codes in a safe, offline place — do not store them digitally or in screenshots.
Device management
Name trusted devices for clarity, and remove any you no longer use. Regularly review device lists to catch unfamiliar entries early.