Attached is a plugin I knocked together inspired by the checkbox on
bugzilla login screens that allows the user to limit page requests to
the current IP address. I'm not so sure this is all that useful for
SM, where most of the vulnerabilities to date are usually having to do
with XSS or CSRF issues that don't really involve someone hijacking
and sending page requests from another location, but I could be wrong.
More security options aren't necessarily bad, but I'm not sure how
useful this would be....?