I'm trotting out that old favourite "Hacking Websites for fun and profit" for the December meeting of the Next Generation Usergroup, Oxford Branch (Wednesday 6th December, Research Machines offices, Abingdon). The session aims to cover the safety of your ASP.Net web sites by looking at parameter munging, cross site scripting SQL injection and information leakage with demonstrations on how exploits are used ran against some deliberately bad code.
Chris Seary will be presenting a nugget on "Securing Web Services with WSE".
Attendance is free, there's even pizza (if the delivery guy can find the RM offices, he got lost last time) so sign up on the nxtgenug web site and let us know you're coming.