Preventing weak passwords by reading your mind
The recent Ashley Madison hack has shown how to make your originally safe password hashing useless. Many passwords have been already decrypted that way and it again turns out that most passwords are super simple and predictable. It shows that even if the passwords wouldn’t have been cracked, hackers could still run word-lists on the hashes and get access to the accounts easily. Always choose a strong password and use them only once.
Passwords are crap. Nobody picks good ones, when they do they re-use them across sites, and if you use even a trustworthy password manager, they’ll get hacked too. But you know what’s worse than a password? A fingerprint.