Have online monetary scams ever faded away, even with the approach of strong high technology by banks and security organisations?

Since the beginning of online transactions, there have always been scams, so it does not end or start with crypotcurreny. Whatever extra security or technology introduced for protecting online scam will not be 100percent effective if users don't play their part. You can take extra measures by inputting 2FA and strong pass phrase password, if your coin is always online; it is highly vulnerable.