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Quote:

Originally Posted by DiDok How high are you right now?

You do know that a GPU can crack at a rate of a few billion guesses per second. We don't know how they salted it, maybe a central salt. (which would significantly speed up the process), if they have individual salts but in the same database that would also make it easy, if they have the DB dump they can easily create a program that combines the password with the salts.

Obviously it also depends on how often they hashed the password. Now GPU cracking is faster but it doesn't give too much of a boost with SHA512 due to how its made (but a few thousand per second is certainly achievable), but it's still significantly fast, he can easily have cracked a few dozen passwords already.