Brian Grayek, vice president of security company CA, says that users can sometimes detect a slowdown in performance, hear their PC's hard drive whirring or see their Internet router's lights flashing when they're not using the computer, all signs that zombie software is at work.

FORBES: Magazine Article

Brian Grayek, vice president of security company CA (nyse: CA - news - people ), says that users can sometimes detect a slowdown in performance, hear their PC's hard drive whirring or see their Internet router's lights flashing when they're not using the computer, all signs that zombie software is at work.

FORBES: Zombie Storm Rising

That way, your computer will never get infected, nor will it be turned into a zombie ready to do the illicit bidding of some scam artist, identity thief, mail spammer or child pornographer.

ECONOMIST: Putting a stop to online infection