Nightly News   |  May 28, 2013

Chinese obtain US military secrets

The hackers did not aim at Pentagon, but at the private contractors that produce weapons for the US military. The Chinese deny they are behind the cyber attacks. NBC’s Jim Miklaszewski reports.

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>>> president obama is set to meet with china's new president in california next week and topic number one might be the quiet silent theft going on involving some of the u.s. military 's top secrets among them we learn today chinese hackers now have their hands on details about some of the most advanced weapons systems . our pentagon correspondent jim miklaszewski has more.

>> defense officials claim these attacks strike at the very heart of some of the most critical u.s. weapons systems . the chinese reportedly hacked into front line air defense systems like the navy's aegis and the army's thad systems and the most costly u.s. weapons systems ever, the air force f-35. two years ago the chinese revealed a stealth fighter jet which bears a striking resemblance to the u.s. f-22. the fear is the chinese will use this stolen technology to build their own deadly high-tech weapons or produce defensive systems that could easily defeat u.s. weapons. the cyber attacks were not aimed at the pentagon but the private contractors who produce these weapons and the pentagon is now assisting those contractors in tightening up their cyber security . meanwhile, the chinese deny they're behind the cyber attacks. nobody here is buying it, brian.

>> jim miklaszewski at the pentagon for us tonight, jim, thanks.