If you are willing to take part or i mean if you are willing to provide your data better to deal with it with a established and trusted casino, they might be more care about it as they know that it was the business that in stake if ever that a date breach will happen, they will be more on the security side and they have that good allocated budget for that to the point that they will provide additional layers for any possible attack, layer that will guard those data no assurance but additional security will give some breath for the business.
Established and trusted gambling platforms may have layers of tight security to protect user identity data (KYC) but don't forget that our KYC remains open internally on that platform, we cannot be sure that an established gambling platform can operate forever without the popularity and rating of the gambling community, because gambling platform competition can change the rating position and popularity so that the previous established gambling platform is no longer attractive to its users and then the platform disappears, we may not have reached that condition yet, but what do you think about the KYC data security guarantee if the previous top gambling platform has lost in business competition and being abandoned by the gambling community?