Opinions are my own As someone who works for a large financial institution, THIS SHOULD NEVER HAVE HAPPENED! This could be deeply flawed security and controls processes, a culture of not my problem, their tech leadership being incompetent, or CFO driving CIO/CTO decision making. Either way this is not the sign of a healthy company and the rot likely runs much deeper. You dont make this kind of mistake in this industry at a firm of that size.