A couple from New York state is seeking class-action status for a lawsuit against Citigroup, alleging that the third-largest U.S. bank has "taken no steps" to protect victims in the wake of a massive data breach, according to reports. Citi admitted in June that 360,083 accounts – about 1.5 percent of its card customer base – were compromised in the attack, in which hackers infiltrated the online banking platform, Citi Account Online, and viewed customer account numbers and contact information.The plaintiffs, Kristina and Steven Orman of Northport, N.Y., filed the suit on Friday in response to fraudsters allegedly charging their credit cards and stealing money from their bank accounts.