By altering the number and repeatedly querying the server, Auernheimer and Spitler were able to obtain hundreds of thousands of email addresses, which they then released to Gawker."
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Amazing that something as simple as that landed him 10 years. This is something even I have done with some servers for telecoms in my country. And trust me, I'm no hacker. I just know basic HTTP GET request parameters, and what asshole doesn't know about those?
The laws in the US are terrible.