Here is some helpful reading:

http://www.google.com/support/forum/p/AppSecurity/thread?tid=5ecff51e4f36aa69&hl=en&fid=5ecff51e4f36aa6900046180ed6135bc
http://www.google.com/support/forum/p/AppSecurity/thread?tid=5ecff51e4f36aa69&hl=en&fid=5ecff51e4f36aa690004617f2ec057c7