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Anything that diminishes a threat to the network is called a safeguard or countermeasure. The following are examples:
- Keep the latest patches applied. Patches and hot fixes are published periodically.
- Perform daily and weekly backups. For example, if a file has been infected with a virus, you should have a clean copy backed up that is usable.
- Use a PIX firewall, since it can prevent an intruder from entering your network.
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