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Removing an infected system from a network

Is it a good idea to immediately take a computer off of the network if you suspect it has a virus?

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Yes, this is a good idea. The best way is to actually remove the cable connection (if not a wireless network). Once all traces have been cleaned off and an update to the antivirus protection has been put in place, you can re-connect.

This is also a good time to check that the hard drives are not being shared on the network in an insecure fashion.

This was first published in August 2001

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