All it takes is different logon passwords for both accounts, no way to place 'fatfinger' trades.

In these instances, I figure those guys use it as a strategy? Haha!! Hire novices, let the novice make an 'error', then see and observe what happens.

Heads they win, tails they win too. If it turns into a huge winner, the bank makes $$, if it's a bomb, they'll blame and fire the novice, while writing off under loss

provisions and come up smelling like roses. Win win, either way.