The gambling license a casino operates under will have a big impact on your security. Not all licenses are equally safe for players for the simple reason that they are issued by different gambling authorities that work in different ways and have different rules. The rules and regulations may be quite similar, but the way they are enforced is a different story entirely. For example, if a casino doesn’t comply with the regulations, some gambling authorities may just issue a fine while others may revoke the casino’s license outright. How often gambling authorities show up for an unscheduled inspection or control will also vary.
The biggest differences between a safe, high quality gambling license and one that isn’t as good will usually show up in the areas of fair gaming, dispute resolution and the rules and systems for identifying and handling problem gamblers (responsible gambling). If your country of residence has its own gambling authority, playing at casinos that are licensed by them will be the safest option for you. Other international licenses that can be trusted are issued by the Malta Gambling Authority and the Gibraltar Regulatory Authority. Curacao eGaming is getting better at protecting players whereas licenses from Panama and Costa Rica, for instance, are considered less safe. The worst option is obviously a casino with no license whatsoever.