Breakins are NOT always detectable through up to date antivirus software and typically, there is no automated clean up method. Breakins can occur through a file you download and run, or via some security hole exposed through a network connection. Breakins are attacks that specifically target your computer. Up to date anti-virus software or special removal tools are used to detect and clean worms.
Worms, unlike viruses, spread by sending copies of themselves across the network, exploiting vulnerabilities in programs on other computers. There are also malicious programs called worms. Up to date anti-virus software or special removal tools are used to detect and clean viruses. Viruses can be carried along via e-mail or other files that you have downloaded or transferred. Similar to a biological virus, a computer virus piggybacks on top of other programs or documents in order to become executed, infecting the machine. Recent events indicate a definite progression in the sophistication and seriousness of viruses and worms.
