Where to sell vk.com feature/bug?

Question

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Found an interesting bug in the social network vk.com. I asked colleagues what to do with it, to which I received the answer "sell if there is no way to use it."
I don’t breed groups, I don’t grow publics, therefore it remains only to sell. But to whom and where? Are there exchanges for such cases?
When using this bug, you can display targeted ads in any group / public, which will be read by the end user with a 100% guarantee, if he is not a bot of course.
I don’t want to write to support, once I was already knocked over there, closing a hole the size of a Boeing hangar (you could see the authors of posts in anonymous publics if they were sent through “offer news”) and no thanks, no thanks.

Answer 1

Write to supporters, but do not voice the details of the bug - just that there is a bug and your price. If they send you - take profit elsewhere, if they pay - you don’t have to go far, there is already a profit. And from here delete the description of the bug, otherwise they probably monitor the Internet for such topics.