Can a World State variable be accessed by a chaincode different from the one that deployed it?

Question

If a chaincode A stores a variable V to the World State can this variable V be accessed by another chaincode B?

In other words, are variables in the World State access protected?

If it is not possible, how can I make chaincode B read the variables from chaincode A (I need it for my use case)?

Answer 1

No, variables stored by some chaincode A can only be accessed by the same chaincode A.

In case you want to to do something like that you can try to  invoke/query chaincode A from chaincode B