Pentagon Proposes Cyber-Security Rules for Unclassified Data

The U.S. Defense Department, the target of 300 million attempts daily to probe its computer networks, wants to require its contractors to report hacking that compromises sensitive information.

Under a proposed regulation, companies would have to report the breach within 72 hours, preserve evidence and assist with the investigation. The proposal also would require companies to employ “basic” security measures such as encrypting data and installing software that detects intrusions.