Vivek Ramachandran has been working on Wi-Fi security since 2003. He has spoken at conferences such as Defcon and Toorcon on Wireless Security and is the discoverer of the Caffe Latte Client attack. He also broke WEP Cloaking, a WEP protection schema in 2007 publically at Defcon. Vivek is the author of the book "Wireless Penetration Testing using Backtrack" due for release later this year. He was one of the implementers of 802.1x protocol in Cisco's 6500 Catalyst series of switches. Vivek is also one of the winners of Microsoft Security Shootout contest held in India among a reported 65,000 participants. He is best known in the hacker community as the founder of SecurityTube.net where he posts videos on Wi-Fi Security, Exploitation Techniques etc. and which gets over 100,000 unique visitors a month.