The subpoenas are the latest chapter in S.I. Newhouse's recently filed copyright infringement suit against the hackers who got their hands on material from Condé mags before publication, including GQ's Men of the Year issue, and the December issues of Vogue, Lucky, Teen Vogue, which ended up on the Web site FashionZag. The suit, cites no specific dollar amount; it wants to stop the hacking.