Yeah I know you are referring to the fiat-based financial system. Keep in mind, wire transfers generally cannot be reversed. There have been notable instances where money is lost/stolen this way, and no way to get it back.
> A full recounting of it is outside the scope of this anecdote, but it rhymes with “If you and the United States federal government disagree whether a transaction is final, you are wrong.”
[0]: https://www.bitsaboutmoney.com/archive/no-payments-are-final...
If it's a significantly large sum, it may look like this:
Step 1: The CEO of the debtor bank calls the CEO of the creditor bank and asks to return the money.
Step 2 (only needed if there is disagreement): Lawyers of the debtor bank send a ton of legal papers to the creditor bank and figure it out.
But it's just one of nearly infinite number of scenarios.
Sometimes they get lucky though and the government passes a law allowing them to seize equivalent assets a few decades down the road.
When you transfer a dollar from your account to Putin's account in a Russian bank, in reality your bank transfers a dollar from their account within the FRS (Federal Reserve System) to Putin's bank's account within the FRS.
It can be more complicated with more intermediaries, but it can be traced and reverted.
https://en.wikipedia.org/wiki/Bangladesh_Bank_robbery
Most of it was stopped and some was even recovered but $66Million is still lost 10years later .
In both incidents protection are reliant on the authorities to minimize the damage ; tether and circle able to freeze tokens is not that different from the traditional finance doing it.
Crypto is only reinventing structures that evolved in every financial system over time.
Overtime they are going away from their founding theme of decentralization . Exchanges and stable coin issuers who can freeze wallets and coins are by definition centralization ; it is worse though as these organizations are less transparent than banks with less accountability
Most of the billion was frozen though if it was not frozen in time it would have probably evaporated just like these bitcoins getting into mixers.