Federal Agencies' Anti-Hacking System Called Limited

A $6 billion security system intended to keep hackers out of computers belonging to federal agencies isn’t living up to expectations, an audit by the Government Accountability Office has found. A public version of the secret audit released last week -- a secret version containing more sensitive findings was circulated to government agencies in November -- concerns the Einstein system, formally called the National Cybersecurity Protection System and operated by the U.S. Department of Homeland Security.