“Ukraine is one of the few countries where an expat can not get a social security check without picking it up in person at the embassy. If SSA finds out you’ve managed to get your SS money while in Ukraine, they will stop your payments.”
Due to fraud?
Fraud and corruption.
When I checked for US banks in Ukraine about eight years ago, none had branches there.
The only possible bank I found I might be able to use for transferring money was a French bank that owned a regional bank in the US.