My ex-boss, ex-friend, ex-business partner... He really did, what a lot people suspected and he is more intelligent than I am, so...

Not going to go for any specific technical details here. He built a start-up company about six or seven years ago, with a catchy name, and lo-and-behold, people went - with pockets deep - investing to his scam.

Now, the company itself has vanished completely. All of the former employees are bound by the restrictions of the NDAs. He is nowhere to be found.