US govt agencies come under big cyber attack

Washington

HACKERS broke into US government computers, possibly compromising the personal data of four million current and former federal employees, and investigators were probing whether the culprits were based in China, US officials said.

In the latest in a string of intrusions into US agencies' high-tech systems, the Office of Personnel Management suffered what appeared to be one of the largest breaches of information ever on government workers. The office handles employee records and security clearances.