Crossing of chains

Security
1

I have a problem with a so-called string crossing that I consider to be impossible. Worse seems to be what happened.

We have a contract on testnet for a presale. A user, without knowing very well how he did it, sent a real BNB to the same address of the contract but in the mainet.

test presale in testnet:

account in mainet:

The only way I can understand that the user has done it is to send a direct transfer from the metamask to the address of the pre-sale contract in the mainet. But still there is something that I do not understand and cannot explain ...

If we check the transaction in the mainet we see that it has activated the purchase method `` `buytokens```:

fallo-metamask
fallo-metamask1422×276 16.5 KB

How can a method that does not exist in the blockchain be activated? How can you activate a method in testnet but execute the transaction in mainet?

I have a good discussion with the technical chief. Because I still think that there is something strange here. I look forward to your help, always thanking your attention and knowing.

2

This doesn't mean that the method was actually invoked. What probably happened is just that Etherscan was able to decode the calldata and identify the function call that was encoded.

4

Exacly.. Thanks for your reply.