2017 Jewish Community Center bomb threats

In early 2017, a wave of more than 2,000 bomb threats were made against Jewish Community Centers in the United States, United Kingdom, Australia, New Zealand, Norway, and Denmark. Two arrests and two convictions were made in connection with the threats: Michael Ron David Kadar, a dual American-Israeli citizen, who received a ten-year sentence, along with Juan M. Thompson, a former journalist, who received a five-year sentence.

Source: Wikipedia — 2017 Jewish Community Center bomb threats (CC BY-SA 4.0)