Unidentified hackers temporarily blocked access to the federal court systems public website on Friday, preventing lawyers from filing legal documents, Politico reported. The denial-of-service attack hit uscourts.gov, as well as other federal court websites around the country, a spokesman for the Administrative Office of the U.S. Courts told Politico. PACER, the court system access page that provides information on cases, and its electronic filing system also were affected.