Microsoft Corp. v. United States, known on appeal to the U.S. Supreme Court as United States v. Microsoft Corp., 584 U.S. ___, 138 S. Ct. 1186 (2018), was a data privacy case involving the extraterritoriality of law enforcement seeking electronic data under the 1986 Stored Communications Act, Title II of the Electronic Communications Privacy Act of 1986 (ECPA), in light of modern computing and Internet technologies such as data centers and cloud storage.