matt.wronka.org

From a Security Focus article:

Cavicchia was the agent who last year spearheaded the investigation of Jason Smathers, a former AOL employee accused of stealing 92 million customer e-mail addresses from the company to sell to a spammer. The agent was also an adopter of mobile technology, and he did a lot of work through his T-Mobile Sidekick -- an all-in-one cellphone, camera, digital organizer and e-mail terminal. The Sidekick uses T-Mobile servers for e-mail and file storage, and the stolen documents had all been lifted from Cavicchia's T-Mobile account, according to the affidavit. (Cavicchia didn't respond to an e-mail query from SecurityFocus Tuesday.)

Things to learn from the article: encrypt all of your e-mail and instant messages (the hacker's ICQ instant messages were being tracked by the feds), do not give your SSN to companies, never trust somebody else's machine. Do not put data on somebody's machine that you don't want made public (such as pictures). If you don't control everything completely, you don't control anything.