Cloud computing has started to change the way we think about building and hosting applications. The access to large computing resources on demand has allowed applications to rapidly handle their scaling needs. But it also has other uses… like breaking (oh, I mean testing) your (someone else’s) wireless network. WPA Cracker is a cloud solution to crack WPA-PSK wireless networks. It does this by leveraging a 400 CPU cluster and  a 135 million word dictionary. You just need to upload your network traffic capture to their server and after a bit of crunching it spits out they key. They claim it takes about 20 minutes to break, which will cost you all of $17. I think this is great. I’m pretty sure professional hacking groups had access to these types of resources in the past; so it’s really nothing new. Hopefully now that it has become a bit more public people will take the proper security steps to protect their networks, servers and data.