I'm not 100% sure on how WPA works, but I think the crack allows you to log onto the protected network and exchange data with everyone else on the network. Howe

I'm not 100% sure on how WPA works, but I think the crack allows you to log onto the protected network and exchange data with everyone else on the network. However, it doesn't allow you to sniff traffic that isn't headed your way. For example, Alice is using her laptop to load data from Bob's PC, which is attached to the access point. Eve cracks the AP's WPA passphrase and logs onto the network. She can initiate traffic to Alice and Bob's machine, but she can't see the data they're exchanging because individual wifi users' encryption is negotiated separately.