Just make sure you backup your wallet.dat!!! It doesn't matter if new transactions go into your addresses after the backup. The backup only contains the keys needed to spend the bitcoins in your addresses!
how to make backup wallet.dat ? which one do you use, blockchain.info or the others ...
please explain to me ...
Just encrypt the file and store it in your USB.
Since you are using blockchain.info wallet, don't forget to make a new backup after creating a new address in your wallet.
I think a backup will be sent to our email after an address is generated.
Kindly,
MZ
