Good evening Steve Jackson Games, I recently came across a business competitor of mine using one of your logo's as his on facebook. I imagine it highly unlikely that he has proper permission to use it. You can find the logo here
https://www.facebook.com/events/2991...story%22%3A%22[%7B%5C%22surface%5C%22%3A%5C%22messaging%5C%22%2C% 5C%22mechanism%5C%22%3A%5C%22attachment%5C%22%2C%5 C%22extra_data%5C%22%3A%7B%7D%7D]%22%7D