Yes, WEP is dead, but it's still in wide use in the retail world and in devices that can't be upgraded: What to do? The best offense is a good defense. Plus some more offense. While AirDefense announced its WEP Cloaking tool to bolster its wireless monitoring and intrusion detection system back in April, which flooded Wi-Fi networks with WEP packets designed to mislead cracking tools by providing information that would drastically increase computation time or ruin calculations.
AirTight, a competitor, now enters the market with WEP Guard (no relation). The company says "WEP chaffing," or the insertion of many illegitimate packets as in AirDefense's method isn't a real approach. Instead, their system monitors for weak initialization vectors (a way to crack WEP very rapidly) from existing devices, and detects active WEP cracking tools. They also claim they can stop an intrusion when a WEP key is compromised.