Data hacked from federal government dates back to 1985: U.S. official

By Andrea Shalal and Matt Spetalnick WASHINGTON (Reuters) - Data stolen from U.S. government computers by suspected Chinese hackers included security clearance information and background checks dating back three decades, U.S. officials said on Friday, underlining the scope of one of the largest known cyber attacks on federal networks. The breach of computer systems of the Office of Personnel Management was disclosed on Thursday by the Obama administration, which said records of up to 4 million c