Great topic tranthidung 🙂 as always

You responded to what came into my mind just today when i was about to look for a transaction hash by checking the transaction's history of some addresses. I used blockchair explorer and this is the result i've got by searching the first btc address :
https://blockchair.com/search?q=1QFWxRby6Nxf3jd2seW7XAMQvuh4Q18pSTI was surprised see that the address is used in three different blockchains BTC BCH and BSV

The address is valid supports three tokens but each one has a different private key. And those private keys cannot be owned by one person . I think am not mistaken and there is no connections between the three blockchains, right?
You can imagine what/how much disasters could happen by mistakenly send wrong token to right address or right token to wrong address .