They work indirectly by revving up various bodily defense mechanisms to attack the virus.

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It seems that as defense mechanisms and firewalls evolve, so too do cyberattacks, with no silver bullet or atomic bomb on the horizon.

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My counselor in middle school at the time, Ms. Artson, took time to listen to my arguments, maybe my hurt and defense mechanisms.

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Communications director Philippe de Buck says Europe has self-defense mechanisms.

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So as more facts arrive, we should do our level best to look at those facts with fresh eyes, banning the ego defense mechanisms from blinding us to a potentially new, or even simply different, reality.

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In a preview of its presentation, the team acknowledges Apple's "plethora of defense mechanisms in iOS." Historically, Mac users have been able to boast of being largely malware free, in part because spammers, scammers and hackers preferred to target the larger number of Windows computers in the world.

CNN: Doug Gross,