Massive Consolidated Lawsuit Blazes Trail for Hacking Litigation

Hundreds of attorneys are gearing up to litigate the largest systems hack of the year in a case that could establish a roadmap for how lawyers and judges manage similar consolidated class actions, attorneys said.

Dozens of businesses are defending claims that they’re responsible for the exposure of customer Social Security numbers and other private information they stored on Progress Software Corp.'s MOVEit file transfer software breached by Russian cybercriminals in May.

Hackers ultimately obtained data from more than 2,600 organizations, including US government agencies, the nation’s largest pension fund, and major companies like IBM Corp. More than 240 class ...