The FBI was helping the Montenegrin police detain an Iranian-Turkish national whose cyberattacks on US infrastructure allegedly caused billions in damages.

Montenegrin police say they have arrested an Iranian national who is wanted by the United States for mass hacking attacks that caused damage of $3.4 billion.)

Montenegrin police and the FBI arrested an Iranian-Turkish national accused of carrying out cyberattacks on more than 150 US universities, causing an estimated $3.4 billion in…