I have read that the KDBX4 password database is "very secure" but am curious if any hacking challenges have been conducted to see if anyone can break it? The challenge I have in mind put some kind of contact info in an entry and then post the KDBX file on a public site for anyone to download and try to hack. If you get it open, use the info to contact the contest organizers and once you explain how you overcame the security and it's replicated you get however much has been donated as a hack bounty.

I'll put $100 in right now if the maintainers of KeePassXC are down with this.