Someone asked about the
internal visibility function in solidity.
Two comments claimed that despite being internal at the access and code level, there would be some ways to be able to access and call a function marked
internal from another contract.
the first comment says that through the "deposit challenge verify" mechanism it is possible to get around this
the second says that through upcode
EXTCODECOPYis also possible.
I don't know if I'm getting confused or if they actually said that it's possible to access and call from outside the contract a function marked
internal. I've studied and read several things and I haven't seen how this is possible.