I know it is customary to not give an empty wallet or purse, you never open an bank account with nothing in the account! Regarding BTC addresses or any other crypto...,Is there a vulnerability in generating a crypto address for payment, then losing possession due to another transacting on that generated address before the keys have been written (or broken) to the blockchain? For example the entity you provide the address to for payment?Also, I may have access to a few cycles on  Dwave unit and can finance a couple terrabytes of AWS BRACKET data to load a blockchain for a PoC if what I am saying makes sense and you are interested in breaking/exploiting blockchains.PS: As a PoC exersise I might be able to raise enough capital to hire a few hashing services to prove out a 51% @ttack. If you have an issue with Dwave. Or should I just save my money and wait for the cruise ships to start up again? :P