what might be called privacy is the security of transactions including the security of our account and wallet. whether that's what it meant. May need a clearer definition of the above question. about a blockchain transaction may not have anything to worry about. Because we are still protected from some security in our account. But if the question is our account and wallet finances that may be the point in question. All the most fundamental root in the transaction is the security of our account and wallet of course. now there are many security that protect our account, but whether the future is still safe? that's what needs to be upgraded at all times regarding the securit system.