Security News > 2017 > February > NSA Using Cyberattack for Defense (Schneier on Security)

These days, it's rare that we learn something new from the Snowden documents. But Ben Buchanan found something interesting. The NSA penetrates enemy networks in order to enhance our defensive capabilities. The data the NSA collected by penetrating BYZANTINE CANDOR's networks had concrete forward-looking defensive value. It included information on the adversary's "future targets," including "bios of senior White House...

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https://www.schneier.com/blog/archives/2017/02/nsa_using_cyber.html