Wednesday, May 18, 2005
How to crack WiFi networks that use WEP
At an ISSA (Information Systems Security Association) meeting in Los Angeles, a team of FBI agents demonstrated current WEP-cracking techniques and broke a 128 bit WEP key in about three minutes. So even the 128 bit key is not safe enough.
Here is what The Feds suggested to protect your WiFi network:
- Network segregation: Seperate your WiFi network from your internal network and put a firewall in between.
- Change default settings of your Access Point: Seems like a no brainer that you should change your default password and default SSID to some more secure.
- Turn off the Wifi network when not in use: Use a timer to turn off the Wifi network when you are not using it (eg. sleeping hours).
- Firmware updates: Keep updating you firmware on the AP, as vendors might release patches for existing vulnerabilities.
Copyright Anand Jain 2004, 2005. All rights