Crown Sterling got to speak at Black Hat because it had purchased a gold sponsorship package meaning its talk had not been peer-reviewed or vetted for quality. The companys presenter regaled the audience with talk of infinite wave conjugations and quasi prime numbers, not everyone was impressed. Some members of the audience were ejected from the room after heckles and boos. Now the organisers of the Black Hat conference are being sued by Crown Sterling.”]
Source: https://grahamcluley.com/company-that-was-laughed-off-stage-sues-black-hat/