Always read and understand the terms of service of the casino. Always check their policy on deposit, withdrawal, and KYC. Also, check if the use of VPN is acceptable if the casino is not accessible from your location. Don't also use your main email to register. Getting a unique email that is only used for the casino will be safer. Don't also leave large sums in casinos. Having and following a gambling budget will also be a sound practice to avoid addition or over-gambling. Research on different casinos is also ideal for avoiding losing your funds to fraudulent casinos.