This was a popular session. The queue stretched down the hall, out the front door and around the block. It covered the main vulnerabilities bad guys exploit to attack websites. It was a good session given by Joe Walker who also gave the BOF on Comet.
He also covered JSON hijacking and the old favourite, XSS. An interesting point was that if your site has an XSS vulnerability that will allow bypassing of any CSRF protections you may have put in place. One of the biggest problems for preventing XSS is that browsers will render any old crap. Basically the web is broken.