Banks sue Target over security breach

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Banks sue Target over security breach

The fallout continues.

Target and its security partner Trustwave have been sued by two banks for "monumental" losses they say card issuers will face because of the retailer's holiday season data breach.

In a complaint filed in Chicago's federal court, Trustmark National Bank and Green Bank NA accused the defendants of failing to properly secure customer data, enabling the theft of about 40 million payment card records plus 70 million other records, including addresses and phone numbers.

The banks said they lost money from alerting customers to the breach, reimbursing fraudulent charges and reissuing cards. These losses could increase, they said, if criminals ultimately use several million stolen cards as some analysts project.

While the complaint seeks unspecified damages of at least $5 million, New York-based Trustmark and Houston-based Green Bank said losses could top $1 billion for card issuers they hope to represent in a class action, and $18 billion for banks and retailers combined.

Target already faces dozen of lawsuits over the breach. Monday's case may be the first to focus on Trustwave, a privately held Chicago-based company to which the banks said Target had outsourced some data security services.

Molly Snyder, a Target spokeswoman, said the retailer did not discuss pending litigation. Trustwave spokeswoman Abby Ross said that company had a policy of not confirming its customers' identities or discussing pending legal matters.

The data breach occurred from November 27, the big shopping day known as Black Friday, to roughly December 15.

In a Tuesday report issued ahead of a US Senate committee hearing on protecting consumer data from cyber attacks, Senate staffers said Target "missed a number of opportunities" to stop the breach.

According to the lawsuit, Minneapolis-based Target knew as early as 2007 that its systems were vulnerable but resisted making improvements, in part to keep costs down. It ultimately outsourced data security to Trustwave.

Despite advertising its "deep expertise" in payment card industry compliance, however, Trustwave failed to bring Target's computer systems up to industry standards and as late as September 20 found "no vulnerabilities," the complaint said.

"The damage done to the banks and the other class members is monumental," the lawsuit said.

Trustmark and Green Bank seek to hold Target and Trustwave liable for losses under a Minnesota law addressing payment card security, as well as for negligence and violations of other state consumer laws.

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