How much does cybersecurity cost?

Deputy Defense Secretary William Lynn gave a speech at the Center for Strategic and International Studies this morning. He didn’t make any big announcement about the possible Pentagon “cyber command,” as some people had been speculating.

He did, however, rattle off a few interesting statistics about the cost of cybersecurity:

Cyber attacks on our military networks have not cost any lives, not yet. But in a six-month period, the Defense Department spent more than $100 million defending its networks… and we spend billions annually in a proactive effort to protect and defend our networks.

$200 million annually on cybersecurity — and just at one department. (The largest department, I know, but still…)