Three men have been indicted on charges of hacking into Comcast's e-mail and voice-mail service for its Internet customers during two days last year, federal prosecutors announced today.

Using the screen names of Defiant, Slacker and EBK, and associated with a hacker group called Kryogeniks, prosecutors said the men redirected customers to a site that said only, "KRYOGENIKS Defiant and EBK RoXed COMCAST sHouTz to VIRUS Warlock elul21 coll1er seventthe men."

The three were identified as: Christopher A, Lewis, 19, of Newark, Del.; James R. Black Jr., 20, of Tumwater, Wash.; and Michael P. Nebel, 27, of Kalamazoo, Mich.

Lewis went by EBK, Black was Defiant and Nebel was Slacker.

They are charged with conspiring to disrupt service at www.comcast.net, the U.S. Attorney's office in Philadelphia said. The disruption occurred on May 28 and May 29, 2008. It resulted in a "loss" to Comcast of about $128,000.

Approximately 5 million users per day connected to the Comcast site last May.

Contact staff writer Nathan Gorenstein at 215-854-2797 or ngorenstein@phillynews.com.