BOSTON (3/24/10)--Prosecutors plan to ask for a 25-year prison sentence--the maximum allowed--this week for the computer hacker who helped orchestrate several of the largest thefts of credit and debit card data in U.S. history, costing consumers, credit unions, other financial institutions and insurance companies more than $200 million. Albert Gonzalez, 28, a former federal informant from Miami, pleaded guilty last year to separate hacking cases in Massachusetts, New Jersey and New York that involved a number of high profile data breaches. He is to be sentenced on Thursday and Friday in a U.S. District Court in Boston, where several cases were consolidated (Associated Press March 23). The cases included hackings at: TJX Cos., BJ's Wholesale Club, Heartland Payment Systems, Hannaford Brothers, 7-Eleven stores, OfficeMax, BostonMarket, DSW, Barnes & Noble, Sports Authority and the Dave & Buster's restaurant chain. Authorities said that just two of Gonzalez's servers contained more than 40 million distinct credit and debit card numbers. Maximum sentences in the TJX , Office Max and DSW case would be 25 years. He also faces 20 years for the Dave and Buster's attack, and up to 25 years for the Heartland, Hannaford and 7-Eleven cases.