That's exactly what thegrugq does too. Tomorrow if I find an iOS bug that's exploitable I don't have a rolodex of contacts to sell it to hence the need for this

That's exactly what thegrugq does too. Tomorrow if I find an iOS bug that's exploitable I don't have a rolodex of contacts to sell it to hence the need for this service. As a middle man he can confirm the bug hasn't already been discovered and is generally trusted not to keep a copy himself and hack the planet with it after sale. This arrangement protects the seller too from revealing their exploit code to the buyer before payment. Anybody could create a Tor market for auctioned exploits but somebody has to verify the goods first or you get swamped with junk offers.