So, one day your anti-virus program, say Norton or Panda, alerts you that a threat to your computer has been neutralized. Furthermore, you learn that this threat was a malicious remote access Trojan horse that you had unwittingly executed, thinking the program was just a new update for your computer.

You’re relieved to know that the threat is neutralized, but that leaves you pondering, “What is a Trojan horse, and how does it differ from a worm or a virus?” Although these three malware terms are often used interchangeably, there are subtle differences that make each distinct and which when understood can help you better protect your computer.

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