The gang responsible for record identity thefts may also have been responsible for hacking an outsourced Citibank ATM network.
Quoting unnamed law enforcement officials, the Financial Times today reported that a hacking gang controlled by former police informant Albert Gonzalez broke into a network linking 2,200 Citi-branded cash kiosks inside 7-Eleven stores between late 2007 through and February 2008.
Gonzalez and others are accused of stealing account details of 130 million customers from Heartland Payment Systems. Gonzalez earlier pleaded guilty to charges of stealing account details for about 45 million TJMaxx customers.
The network and the machines were owned by Texas-based CardTronics, which took in monthly fees from Citibank, the FT said.
According to court papers, the gang stole card and Pin codes that others used to clone new cards that were used to steal about $2m in cash from Citibank ATMs elsewhere. The thieves also withdrew about $5m using compromised prepaid iWire cards. Most of the money went to Russia.
Gonzalez had been the key informant in the 2004 takedown of Shadowcrew, a cyber criminal network that specialised in identity theft and bank card cloning, which he had helped run, the FT said.