In the last couple of weeks, a nasty virus has been going around, so I’ll take this opportunity to remind you that you need to secure you computers. 

1. Use a firewall (built in to windows) make sure its turned on.

2. Install antivirus/antispyware software, use it, and  and keep it updated..

3. Keep your system updated. (Turn on automatic updates)

4. Secure your wireless network.

Resources

Microsoft Security Information

Secure your Wireless Network Please!