I don't know if the Famous casinos will have that security, because I understand that one of the things that a casino platform spends the most on is security.
Any respectful crypto service that cares about its clients and the safety of their funds, must have a hot/cold wallet setup. And, tbh, most of the
reputable casinos I know of have such implementation. The only problem is that some of them keep in their hot wallets more coins than needed which render it useless.
[/quote]Although there are currently few casinos that have experienced this type of attack and have been successful, that is why the 2FA security layer is always very necessary for users.
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Unfortunately, 2fa won't help if the website itself is compromised.