I have really been investigating Wireless security as of late. If you use Wireless Networking at home or at an office you need to address this because of the importance of your online identity. If you have a Wireless Router you need to make sure you have enabled some sort of Encryption on your signal. I used WEP (Wireless Encryption Protocol) for a little while until I really found out how insecure it is. Granted its better than nothing, I started using WPA (Wi-Fi Protected Access). I use a Linksys Wireless Router to host my internet connection at home and just recently changed from WEP to WPA using the AES (Advanced Encryption Standard) which is significantly more secure than WEP and its supported whole-heartedly by Windows XP.