Hoist by their own Petards
It boggles the mind that these companies have such poor checks and balances that millions - MILLIONS! - can be sent out without any decent verification. A phone call to a secretary should not be all it involves. It's just plain incompetence.
And the vey CFOs who should be making sure those systems are in place are he ones being hoist by their own petards. There's a certain delightful irony to it - I wouldn't want to be in their shoes after one of these transfers.