I frequently see posts from https://twitter.com/whale_alert that imply that
they know which wallet addresses are associated with a crypto exchange.
[here](https://twitter.com/whale_alert/status/1406243855297622023?s=20) is an example:
“10,000 #ETH (22,366,904 USD) transferred from unknown wallet to #Binance”
How does it know which wallets are associated with which exchanges?