It is possible but why would he disclose it then if he was trading it on the black market? Kind would shot himself in the foot then since the vulnerability would be fixed and the price of it would go down to 0.
Actually, that was my original point. If he is already treated as a criminal and a hacker, might as well profit from it. Instead of trying to disclose it publicly and get treated as a criminal, might as well sell it on the black market, don't tell anyone about it and at least profit from all this work.
Actually, that was my original point. If he is already treated as a criminal and a hacker, might as well profit from it. Instead of trying to disclose it publicly and get treated as a criminal, might as well sell it on the black market, don't tell anyone about it and at least profit from all this work.