The first time was in 1991 when a person from France dialed in
     to our machine (then running SystemVr3.2 1.0) and was able to get
     root (administrative) access.  He promptly notified us.

     During our short lived stint of attempting to run SDF under 'linux' on
     IBM compatibles the system was compromised a number of times, but the
     individuals who did it were much more secretive and malicious.  For
     each case users were forced to change their passwords and patched
     software was installed (though this of course introduced other bugs
     that could be found later on)

     After dumping linux and x86 in favour of return to real computers, we
     have not had any major security issues.  We are however, just as vigilant
     to be sure that your account here on SDF is safe and that any security
     issues are resolved quickly before public announcements (cert, et cetera)

     Please NOTE, an administrator will NEVER ask you for your password.
     Anyone impersonating an administrator is BREAKING THE LAW.  You can
     report them to your local authorities if you identify them.