Note about app interfaces: Some apps (especially Facebook and Instagram) have different menu layouts depending on your account settings. If you do not see an exact menu match, look for similar wording or alternate paths provided in the instructions.

Pick a service above to see your security checklist.

Extra hardening ideas

Once multi-factor authentication is on, these habits keep attackers out for good.

Keep backups handy

Print or store backup codes in a secure location offline.
Add a second authenticator device for emergencies.
Review recovery email and phone numbers twice a year.

Watch for takeovers

Check recent logins for strange devices.
Sign out sessions you no longer recognise.
Rotate passwords any time a service reports a breach.