Lockheed Martin Corp. and Boeing Co., the world's biggest defense companies, are deploying forces and resources to a new battlefield: cyberspace. The military contractors, eager to capture a share of a market that may reach $11 billion in 2013, have formed new business units to tap increased spending to protect U.S. government computers from attack.

Chicago-based Boeing set up its Cyber Solutions division in August "because of a realization by the company that it's a very serious threat," Barbara Fast, vice president of the unit, said in an interview.

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Related topics: Cyberattack, Cybercrime, Security