That's pretty grossly overstated. Bank account numbers are printed on checks, which don't have very high security around them at all. If bank account numbers

That's pretty grossly overstated. Bank account numbers are printed on checks, which don't have very high security around them at all. If bank account numbers were as high risk as you say, we'd hear about rampant scams where waiters and cashiers at stores jotted the numbers down when you paid with a check and then drained your bank account later. That dog would have barked.