I recently noticed in my sats that a bunch of the 404 errors that were logged were most likely hacking attempts. So, since I didn’t want to keep going back to logs to figure out who did what, I threw together a little code that can be inserted into any html file that is stored on a host that supports php. The code provides a warning for the person trying to access a file that does not exist, and it also sends an e-mail to me when such a thing happens.