troyhunt writes: "Software developers have long relied on using a salt to add randomness to passwords before they’re hashed and stored in the database. The theory has always been that the unpredictability of the salt protected passwords by making them too computationally expensive to crack as it ruled out techniques such as rainbow tables which rely on pre-computed hashes. But the hardware of today – particularly GPUs – have now progressed to the point where cracking even salted passwords using fast hashing algorithms like MD5 and SHA is trivial, as this article demonstrates."
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