The travel rule is an anti-money-laundering requirement originating in the FATF recommendations and legally binding in the European Union. Its substance: information about the sender and the recipient must travel with a crypto transfer, just as a payer's name and account travel with a bank transfer.
What it looks like in practice
When you send crypto out of a regulated exchange, the platform may ask:
- who you are sending to — whether the address is your own or a third party's; - which service — whether the destination is another exchange, a personal wallet or another provider; - the source of funds, if the amount or the pattern triggers it.
For a personal wallet you may be asked to prove ownership — for example by signing a message with the address. That is not the exchange being curious; it is a legal requirement.
Why it concerns a casino player
Two places. First, receiving a withdrawal: an incoming payment from a crypto casino is a pattern that triggers a check, and some exchanges freeze the sum for its duration. Second, **making a deposit**: some exchanges restrict sending directly to gambling sites.
The practical conclusion is simple — if your exchange is strict about this, route through an intermediate wallet, and never use somebody else's address. A payout to a third party breaks the exchange's and the casino's rules at the same time.