Then you need to account for wire sales through clearing houses like FTD or Teleflora.

FORBES: What You're Worth

One participant was instructed to wire her payment to an account in the name of Delaware Escrow Co.

FORBES: Oxbridge Scams Pegasus

The privately-held Vatican bank, Institute for Works of Religion (IOR), located inside Vatican City, has been at the centre of several financial scandals in recent years, and has been under investigation since 2010 for allegedly omitting data in wire transfers from an Italian account.

BBC: Cash-only for visitors to the Vatican

Money, reduced to bits on a fiber optic wire, could now be moved from account to account, country to country, in microseconds...so quickly that it rarely ever even needs to precipitate into actual currency.

FORBES: Malone's Musing

Through a John Doe summons issued to the U.S. bank holding the correspondent account, the IRS can view records of deposits and payments by check and wire.

FORBES: Wells Fargo Hit With IRS Summons For Tax Haven Account Data