China Hackers Hit U.S. Chamber

A group of hackers in China breached the computer defenses of America’s top business-lobbying group and gained access to everything stored on its systems, according to several people familiar with the matter.

U.S. Probe Ties Chinese Cyberspying to Military

U.S. intelligence agencies have pinpointed many of the Chinese groups responsible for cyberspying in the U.S., and most are sponsored by the Chinese military, according to people who have been briefed on a U.S. intelligence investigation.

China Singled Out for Cyberspying

The U.S. government accused the Chinese of being the world’s “most active and persistent” perpetrators of economic spying, an unusual move designed to spur stronger U.S. and international action to combat rampant industrial espionage threatening U.S. economic growth.

Cyberwar Plan Has New Focus on Deterrence

The military must move from defending against major cyberattacks to deterring assaults by letting enemies know the U.S. is willing to retaliate with its own virtual weapons or military force, a top general said Thursday.

Inside the Anonymous Army of “Hacktivist” Attackers

In this sleepy Dutch town last December, police burst into the bedroom of 19-year-old Martijn Gonlag as he hurriedly pulled on jeans over his boxer shorts. He was hauled away on suspicion of taking part in cyber attacks by the online group calling itself Anonymous.

SEC Is Pressed on Firms' Disclosures of Cyberattacks

A group of U.S. lawmakers wants the Securities and Exchange Commission to push companies to disclose when they have fallen victim to cyberattacks.

SEC Is Pressed on Firms’ Disclosures of Cyberattacks

A group of U.S. lawmakers wants the Securities and Exchange Commission to push companies to disclose when they have fallen victim to cyberattacks.

Computer Worm Hits Iran Power Plant

Computer systems at Iran’s first nuclear-power plant have been infected with a potent worm capable of taking over their control systems, Iranian officials said, citing the most significant example yet of potential dangers posed by the so-called Stuxnet worm.

Grid Is Vulnerable to Cyber-Attacks

Computer networks controlling the electric grid are plagued with security holes that could allow intruders to redirect power delivery and steal data, the Energy Department warned in a recent report. Many of the security vulnerabilities are strikingly basic and fixable problems, including a failure to install software security patches or poor password management.

U.S. Plans Cyber Shield for Utilities, Companies

The federal government is launching an expansive program dubbed “Perfect Citizen” to detect cyber assaults on private companies and government agencies running such critical infrastructure as the electricity grid and nuclear-power plants, according to people familiar with the program.