Expo Passes to RSA include access to keynotes and the Flash Talks area. It also includes admission to Sponsor Case Study sessions and Association Track session and also to the special free community sessions on Monday, Feb 24.
Normally $100 to purchase, several security vendors have released reg codes to get a free Expo pass.
These include, among several others, AhnLabs [Code : SC4AHNLAB], Axway [code : EC4AXWAY], Centrify [Code : EC4CENTR], Cisco [Code : SC4CXSCO], Damballa [Code: EC4DAMBA], F5 [Code: EC4F5NET], FireEye [Code : SC4FREYE], Jupiter [Code : SC4JUNXP], Sophos [Code: SC4SOPHO], and Vasco [Code: EC4VASCO].
You must apply for a free Expo pass by Feb. 21.