What oil is to the Saudis, so finance is to the American economy. A little more than a month after the Aramco attacks, Iranian hackers put U.S. banks in their crosshairs. Executives at Bank of America, J.P. Morgan, Citigroup, Fifth Third Bank, Capital One, and the New York Stock Exchange could only watch helplessly as, one by one, their banking sites crumbled or were forced offline by a deluge of Iranian internet traffic.
