I do not trust any casino that the data is safe, if nothing else the exchanges are capable of giving our data if they are asked for it, an easier casino that can give them because they are games of chance, it is easier for them to be attacked by governments and their enemies, it is very easy for these data to be transferred, that is why we have to be quite suspicious at all times, and that does not mean that casinos are bad or that they are thieves, but that they do not We know what problems they may face and even possible hacks, which is something they cannot control sometimes.
The important thing is that we can always be careful when playing gambling and not play gambling at suspicious casinos to avoid getting into trouble. If we already have a trusted casino on our list, we should always use that casino to play gambling because the casino will take good care of its customers. And if we are asked to do KYC, the data we send will also be properly guarded because trusted casinos always try to provide security for all of their members. So we can be calm and don't need to worry because the casino will do its best to protect the data of its members. And they will also make sure the security is always updated.
But I never believe that the data of the clients of any casino, both large and little-known, remain confidential forever after the player has passed the identity verification according to the KYC procedure or in some other way.
I'm just sure that representatives of the authorities or law enforcement agencies of any jurisdiction where the casino is registered have a guaranteed opportunity to access this supposedly "confidential" personal information about the players of this casino. It would be strange and dangerous for the existence of the casino itself to deny authorized persons or authorities access to such data.
And add to this the elementary theft of files with personal data of customers from the casino servers, as well as deliberate cases of selling such data.
All these aspects make it absolutely impossible for the casino to guarantee the confidentiality of customer data.
And if you have gone through KYC many times, then be sure that your personal data can already be found somewhere on the network. Unless, of course, it's good to try.