Bankers and retailers are resuming their fight over responsibility for losses from cybertheft as Congress weighs responses to a security breach at Target Corp. that exposed data from tens of millions of accounts.
The two sides, antagonists in other disputes over card payments, have already drawn up lines of attack for a series of hearings in Congress that begin this week. Bankers want retailers to cover more of the cost of breaches. Retailers say bankers need to adopt more-secure card technology. Lawmakers must decide whether to act to require tighter security or swifter disclosures.