> So how can CB find out if you're using it on poker? The poker site can generate independent addresses A1, A2, A3, ... to receive deposits. But then they also

> So how can CB find out if you're using it on poker? The poker site can generate independent addresses A1, A2, A3, ... to receive deposits. But then they also need to handle withdrawals. A withdrawal transaction might for example consume the amount in A1 plus part of the amount on A2, sending the leftover change to another new address. Now A1 and A2 have been observed to be under the control of the same entity. All addresses of the poker site can be linked together like this, by tracing the "taint" from a single known address. The poker site can try to split their addresses into subsets that are isolated from each other (selerate "wallets"), but then a blockchain analyst can simply keep doing deposits/withdrawals to find them all.