A sophisticated computer hacker had access to servers at wireless giant T-Mobile for at least a year, which he used to monitor U.S. Secret Service e-mail, obtain customers' passwords and Social Security numbers, and download candid photos taken by Sidekick users, including Hollywood celebrities, SecurityFocus has learned.

Twenty-one year-old Nicolas Jacobsen was quietly charged with the intrusions last October, after a Secret Service informant helped investigators link him to sensitive agency documents that were circulating in underground IRC chat rooms.

By Kevin Poulsen at SecurityFocus.

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