Within the scope of our activities we often happen to find vulnerabilities which have not been known yet. We contact the manufacturers to inform them about these vulnerabilities in order to allow them to implement a patch or a fix. The cooperation with the manufacturers varies, but is usually good. We have already dealt with the following manufacturers:
Review BlackHat / Defcon 2011
11/8/11 - This year, as every year, two security analysts of Compass Security AG participated in the BlackHat and Defcon in Las Vegas.