NEW YORK — This cyberattack didn't go after people playing war games on their PlayStations. It targeted a company that helps the U.S. military do the real thing.
Lockheed Martin says it was the recent target of a "significant and tenacious" hack, although the defense contractor and the Department of Homeland Security insist the attack was thwarted before any critical data was stolen.
The effort highlighted the fact that some hackers, including many working for foreign governments, set their sights on information that has the potential to be far more devastating than accessing credit cards.
Information security experts say a rash of cyberattacks this year — including a massive security breach at Sony Corp. last month that affected millions of PlayStation users — has emboldened hackers and made them more willing to pursue sensitive information.
"2011 has really lit up the boards in terms of data breaches," said Josh Shaul, chief technology officer at Application Security, a New York-based company that is one of the largest database security software makers. "The list of targets just grows and grows."
Lockheed Martin Corp. said in a statement Saturday that it detected the May 21 attack "almost immediately" and took countermeasures.
"Our systems remain secure; no customer, program or employee personal data has been compromised," the Bethesda, Md.-based company said. Neither Lockheed Martin nor federal agencies would reveal specifics of the attack, or its origins. Company spokeswoman Jennifer Whitlow declined to comment further Sunday.
This isn't the first time Lockheed Martin has been targeted. Nearly four years ago, officials revealed that hackers had breached Lockheed's Joint Strike Fighter program. Officials said no classified information about the military program was compromised, but heightened protections were added.
Analysts said the latest attack would likely spur rival defense contractors like Northrop Grumman Corp., Raytheon Co., General Dynamics Corp. and Boeing Co. to take additional steps to safeguard their systems.
"I guarantee you every major defense contractor is on double alert this weekend, watching what's going on and making sure they're not the next to fall victim," Shaul said.
Boeing declined to comment on the company's network security measures. Northrop Grumman spokesman Randy Belote said in an e-mailed statement that "we do not comment on whether or not Northrop Grumman is or has been a target for cyberintrusions," adding that the company "continuously monitors and proactively strengthens the security of our networks."
William J. Lynn III, the deputy defense secretary, said in January that more than 100 foreign intelligence agencies have tried to breach U.S. defense computer networks, largely to steal military plans and weapons systems designs.
China is often pointed to as a source of cyberattacks because a large amount of malware, or malicious software, originates from there. The government denies it is involved but experts say the high skill level of some attacks suggests the Chinese military, a leader in cyberwarfare research, or other agencies might be stealing technology and trade secrets to help state companies.