Is WPA2 Security Broken Due to Defcon MS-CHAPv2 Cracking? Quick answer - No. Read on to hear why. A lot of press has been released this week surrounding the cracking of MS-CHAPv2 authentication protocol at Defcon. For example, see these articles from Ars Technica and CloudCracker. All of these articles contain ambiguous and vague references to this hack affecting Wi-Fi networks running WPA2 securi