Comment by userbinator

Something "worth many millions of dollars" will most certainly be kept very quiet by the repair industry, since it can provide recurring revenue (until someone else discovers and reports it to Apple) to an otherwise extremely repair-hostile ecosystem. Bug bounties are a one-time deal that otherwise gives no advantage to the reporter, but unlocking services are not. These people are certainly not looking for a pat on the back from Apple or wanting to make its devices more difficult to repair.