zarx on 12 November 2011
The difference is that Valve have let everyone know and told them to change their passwords as soon as possible and to watch their credit card statements. They have also confirmed exactly what information was exposed and how it was protected (hashed passwords and credit card info encrypted with the best encryption in the business) and not shut down their entire service for weeks.
By being transparent and up front about the situation they have mitigated the wild speculation that surrounded the PSN hack. The fact that this has happened before also help lessen the impact.
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