Each company sends reports to FinCEN. They aggregate the data. (At least in theory they do. In the past they ignored all the reporting that MSB's had to give them, and only used it as a backup to search to pile on more charges after they caught someone for another crime. But hopefully they'll start caring enough to actually follow up on the requirement. But it's not hard to do, if they want.) And by the way Bessent can't ban them from sending money --- he wants to --- but he's just going to track it for now.
Each company sends reports to FinCEN. They aggregate the data. (At least in theory they do. In the past they ignored all the reporting that MSB's had to give them, and only used it as a backup to search to pile on more charges after they caught someone for another crime. But hopefully they'll start caring enough to actually follow up on the requirement. But it's not hard to do, if they want.) And by the way Bessent can't ban them from sending money --- he wants to --- but he's just going to track it for now.
Hopefully they will actually follow up.