From
Gizmondo:
Gary McKinnon, the British hacker who broke into military computers looking for evidence of UFOs in the "biggest military hack of all time," did so using his home computer and a 56k modem....
Using a limited 56-kbps dialup modem and the hacking name "Solo" he found many U.S. security systems used an insecure Microsoft Windows program with no password protection.
He then bought off-the-shelf software and scanned military networks, saying he found expert testimonies from senior figures reporting that technology obtained from extra-terrestrials did exist....
Maybe the governent should have gotten the aliens to give them lessons in computer security.
More seriously, how many other security breaches have there been from sources less benign than some UFO nut?