By submitting our details online or anywhere we should prepare to any bad result for doing this, what we need to do is to be aware of any possibilities of attacks since for sure those frauds will do some crazy attempts towards us.
And those data leaking or selling is possible since it already happen before. There are lots of situation like this happen and we can found those information if we google it.
True. What many gamblers fail to realise is the fact that any crypto gambling sites regardless of its reputation can be hacked leading to data theft etc which is why submitting our KYC anywhere is considered a risk.
No site is immune to hackers and time has proven that. This is why gamblers need to think carefully before submitting their KYC in any crypto gambling site.