Man finds Steam key-generating bug, Valve gives him £15,000

Artem Moskowsky was testing a web application on the Steam developer site one day when suddenly he noticed a bug: he could generate game keys - thousands of them.

By altering a couple of parameters he was able to, at one point, generate 36,000 Portal 2 keys, Moskowsky told The Register. The kind of keys which activate games on Steam so can be equivalent in worth to a full game.

For a hacker, it's like hitting the jackpot - but not quite. The keys Moskowsky was generating had been generated before, so probably used before. He wasn't creating 36,000 new keys for Portal 2, he was seeing 36,000 keys generated for it.

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