Members changing the credentials and the cron jobs taking to much time to execute

I think on Netmon if you click forget password it sends a new password to some mail and that’s why people get locked out (That’s at least what I got told, not sure if this is actually the case). And yea the box is just undoable on free servers because the web interface is constantly crashing (because of that stack overflow exploit) and people are resetting every 5 mins.