security repository cannot be found

When I try to add the security source (for binaries) by going to the repository
settings, after adding the source I get an error that it could not be found (and
of course I can't change the source on the newer ubuntu synaptic). The source is
mispelled as:

http://secutiry.ubuntu.com/ubuntu/ hoary (Binary)

"secutiry" should be "security"

This also happens when selecting Warty.