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Yes. Programs like Norton rely on first finding a new virus, then discovering its hopefully and probably unique signature, then updating the program on your computer to recognize it in the future. Companies are pretty good at doing that but a rapidly spreading virus could get to your machine before it could be stopped.
If you use Norton or any other program that allows for automatic updates, make certain that is turned on.
And, like I said before, there is no single program that yet recognizes all viruses, trojans, etc. One managed to infect my computer from a web site, despite runing Norton, Webroot, and McAfee Site Advisor all at the same time. None of those detected or stopped it and it took over a week to discover how to get rid of it. Luckily it was a trojan that was annoying but harmless.
If you use Norton or any other program that allows for automatic updates, make certain that is turned on.
And, like I said before, there is no single program that yet recognizes all viruses, trojans, etc. One managed to infect my computer from a web site, despite runing Norton, Webroot, and McAfee Site Advisor all at the same time. None of those detected or stopped it and it took over a week to discover how to get rid of it. Luckily it was a trojan that was annoying but harmless.
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