Jawbone sued Fitbit in California State Court on Wednesday, accusing its rival of “systematically plundering” confidential information by hiring Jawbone employees who improperly downloaded sensitive materials shortly before leaving.…

According to the complaint, recruiters for Fitbit contacted nearly one-third of Jawbone’s employees early this year. Some of those employees then decided to leave, but before doing so, they downloaded information like Jawbone’s current and future business plans and products. Those individuals used thumb drives to download files and used programs to cover their tracks or deleted system logs, according to the court filing.