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A massive breach of U.S. federal computer networks disclosed this week is the latest in a flood of attacks by suspected Chinese hackers aimed at grabbing personal data, industrial secrets and weapons plans from government and private computers. The Obama administration on Thursday disclosed the breach of computer systems at the Office of Personnel Management and said the records of up to 4 million current and former federal employees may have been compromised. (Shalal, 6/7)

The personal data of as many as four million U.S. government workers has been stolen by hackers, in a breach that is linked to an earlier theft of information from health-care companies directed out of China. Bloomberg’s Michael Riley reports on “Bloomberg Surveillance.” (6/5)