United States v. Fricosu, 841 F.Supp.2d 1232, is a federal criminal case in Colorado that addressed whether a person can be compelled to reveal his or her encryption passphrase or password, despite the U.S. Constitution's Fifth Amendment protection against self-incrimination. On January 23, 2012, judge Robert E. Blackburn held that under the All Writs Act, Fricosu is required to produce an unencrypted hard drive.