The lawsuit Aetna brought against a law firm and a pro-consumer interest group over a privacy gaffe that resulted in a $17 million payout by the insurance giant has been transferred from Philadelphia to Los Angeles federal court.

Last year Aetna sued plaintiffs firm Whatley Kallas and the nonprofit Consumer Watchdog in the U.S. District Court for the Eastern District of Pennsylvania over their alleged role in a blunder that resulted in thousands of HIV patients having their names and conditions visible through clear windows in envelopes that had been sent through the mail.