I agree most crimes are ‘pre-meditated’ and require many ‘ploys’ (deceptions).

Imagine that because lots of people say ‘bitcoin system’ is ‘safe’ because it is duplicated and cross-validated by so many independent ‘participating bodies’ (private and government organizations), we can set up a similar computer system. We can label it as ‘blockchain’ system. But we only have a single participant - us. We cannot validate our digital money transactions with any other replicate systems. So our version of the transactions is ‘absolutely’ correct. Now we can ‘launder’ money. We can make good money (fiat) bad with transactions to bad accounts and vice versa – bad money to good accounts. We do this in small sums and do this several times. So we mix good and bad money in umpteen transactions. Now, sneakily, we exchange our digital money into cash or other kinds of assets… Voila! We have a corruption scheme that is very difficult to trace and ‘freeze’. [In ‘blockchain’ identities’ are hidden behind ‘userids’ and ‘password protected’ - this is what makes ‘digital robbery’ easy and safe for the fraudsters.]

This government digital wallet scheme, if using blockchain with only a few ‘nodes’ will fall to hit-and-run ‘attacks’ nodes (a few multi-core computers)… So, hackers anywhere in the world can enjoy some of the ‘taxpayers money too .