The United States hacked and wiped out computer systems and a database used by an Iranian paramilitary group to plan attacks on oil tankers, the New York Times reports, citing U.S. officials. According to the report, the attack took place in June and Iran did not retaliate. It coincided with President Donald Trump’s calling off an air strike, which was planned in response to Iran downing a U.S. drone over its territory. Iran and the U.S. have been locked in a cyber conflict for a while now, but both sides are careful not to go over the top…