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by InclinedPlane 5474 days ago
Sure, but if you can run through billions of possible hashes per second then it's possible to brute force the "one way" hash by exploring hashes for short passwords.

1 billion passwords per second is 86 trillion passwords per day. If a hacker wanted to gain access to a particular password then it can become trivial to crack with fairly modest resources. The only thing that protects you is a sufficiently complex and long password.