A federal jury began deliberations Wednesday in the trial of an accused computer data thief in one of the largest federal computer theft cases.

Scott Levine, former chief executive of the bulk e-mail firm Snipermail.com Inc., based in Boca Raton, Fla., faces 144 counts from a July 2004 indictment in what prosecutors described as one of the largest computer crime cases ever. Levine is accused of stealing 8.2 gigabytes of information from Little Rock, Ark.-based Acxiom Corp., one of the world’s largest database companies. The violations occurred from around April 2002 to August 2003.