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.
As the popularity of the Internet has increased the crimes related to it have increased as well, now this would not be as problematic if this was still like in the early days of the internet boom and people still remained relatively anonymous in almost all their interactions.
But now almost any website requires that you identify yourself, use your email account or give them your phone number at minimum to provide you their services, and this means hackers not only have all the time in the world to hack them, but now the incentive they have for doing so has increased in a disproportionate fashion.