Paris Hilton's little Sidekick is under attack and I'm not referring to Nicole Richie. A vengeful hacker has infiltrated the Simple Life star's T-Mobile Sidekick account and posted the entire contents including private numbers/e-mail addresses of her celeb friends on the web. Among the famous digits making their way around the web today: Eminem, Fred Durst, Ashlee Simpson, Lindsay Lohan, Gilmore Girls star Jared Padalecki, some dude named Cory and former Buffy star Seth Green. "Fred Durst's voicemail was full," wrote a poster on Engadget.com. "Lindsay Lohan's rang and rang and I chickened out and hung up." Added another: "I just called Christina Aguilera. We're going on a date tomorrow." Paris' little black book also contained private photos, notes and e-mail addresses for Usher, Stephen King and The Insider's Pat O'Brien. Noticeably missing from her Sidekick: Contact info for Chops, her country bumpkin beau from the first season of Simple Life. That's gotta hurt.