I was playing around with NEM API, and I got a feature, that maybe it’s obvious but I didn’t know that.
You can have the same address in testnet and mainnet with the same keys.
In fact, the first letter of an address is not meaningful to the keys.
So let’s say I have TALICExxxx with pub key A and priv key B.
If I change the address to NALICExxx it will have the same pub key A and priv key B.
I don’t know if it is so on purpose, but what do you think? a pitfail? or a feature?