Just like any other organization, the CERN computer security measures are not always perfect. While we do our best to find all suboptimal configurations, vulnerabilities and weaknesses, sometimes people outside were faster --- and thanks to their excellent ethics reported their findings to us:

Thank you very much, guys!!! Really appreciated.

If you want to report your findings to us and, if of quality and confirmed, eventually get a CERN T-shirt (sorry as a tax-payer sponsored organization we cannot provide any financial compensation), please send a mail to Computer.Security@cern.ch.