A new data leak that appears to have come from one of China’s top private cybersecurity firms provides a rare glimpse into the commercial side of China’s many state-sponsored hacking groups. Experts say the leak illustrates how Chinese government agencies increasingly are contracting out foreign esp...

Hackers of all stripes looking to test their mettle can now legally hone their cyber skills, tools and weaponry against any Web property operated by the U.S. Department of Defense (DoD), according to a new military-wide policy for reporting and fixing security vulnerabilities. Security research...

Hackers of all stripes looking to test their mettle can now legally hone their cyber skills, tools and weaponry against any Web property operated by the U.S. Department of Defense (DoD), according to a new military-wide policy for reporting and fixing security vulnerabilities. Security research...