Daniel Spitler, a member of Goatse Security, pleaded guilty today to writing the code used to steal email addresses and personal information belonging to 120,000 Apple iPad subscribers from AT&T computer servers. Spitler, who surrendered to the authorities in January, pleaded guilty to one count of conspiracy to gain unauthorized access to computers connected to the Internet and one count of identity theft. Each charge carries a maximum sentence of five years in prison.