"Q: Can you explain why your hack worked but similar attempts (like Wired magazine's) failed?
A: Because... we are the leading cyber security firm ;) It is quite hard to make the "correct" mask without certain knowledge of security. We were able to trick Apple's AI, as mentioned in the writing, because we understood how their AI worked and how to bypass it. As in 2008, we were the first to show that face recognition was not an effective security measure for laptops (related links can be found at the end of this writing)." - via Questions and Answers, Bkav Corporation, November 11, 2017