Complying with U.S. discovery obligations that conflict with foreign data privacy laws can be unenviable task for corporations and their attorneys.

On the one hand, a company can be required to hand over data that is stored overseas during U.S. litigation. And on the other hand, it may break foreign rules—such as the European Union’s General Protection Data Regulation— by transferring the data to the U.S. and handing it to an adversary.

Currently there are few resources that specifically address...