3 stories
Passkeys replace typed passwords with a key your device keeps and you unlock with your face or fingerprint. How they work, where they're stored, moving them between managers, and what to do if you lose your phone.
Substitution, polyalphabetic, transposition and modern ciphers, each with a worked example you can check, and a quick guide to identifying an unknown cipher.
A checked list of which chat apps encrypt your messages end to end as of September 2026, with the catch for each one: backups, carriers, Secret Chats and work accounts.
Showing 3 of 3 stories
You're all caught up.
Get the top AI news and tools straight to your inbox every week.
Weekly · AI news
Join 15,000+ AI enthusiasts
