Both types usually claim to be licensed and regulated, but the question is -- does having more years in the industry really mean they handle our data better? Or are we just assuming that because they’ve built a reputation?
Data safety is never guaranteed in this digital space either from a casino that has been in existence for so long or one that's just coming into existence. You don't do kyc thinking the information you're giving out is secured. Once it's out, don't bother about what they do with your data because even the ones that promises end to end encryption still steals your private information In your chats.
If there's a legit need for certain information about you to be gotten from a casino, just know that they can easily get it. I will rather assume that privacy is never guaranteed anywhere on the online space and take my own measures to protect my self than allow my self become vulnerable just because I'm dealing with a casino that's supposedly of high reputation.