The WEP standard for encrypting wifi networks has long since been easily crackable. Now the next ‘uncrackable’ standard, WPA, can be cracked in 60 seconds. Expect more and better automatic cracking tools to follow, just like the WEP tools like aircrack-ng, wesside, etc. So apparently, WPA2 is now the gold standard, the one to beat. I’m guessing its only a matter of time.
Additionally, its now getting as easy to crack the GSM encryption used in GSM mobile phones, which is the most popular standard around the world: Huge GSM flaw allows hackers to listen in on voice calls
Its really time to start thinking about network security differently. Laptops are becoming ever more common, more and more phones have wifi, etc. Instead of trying to create a safe network, instead we need to think of our computers and devices as an island in rough seas. If you are smart about it, and follow good practices like turning off any network service that you are not using, you can even run a Windows box directly on the internet without problems.