By Gwen Ackerman
Iranian hackers came worryingly close to Israel’s missile warning system, sending the military scrambling to protect alerts from being compromised, its top cyber defense chief said.After detecting the hackers in 2017 and monitoring them to discern their intent, the military blocked them when it became clear what their target was, said Brigadier General Noam Shaar, outgoing head of the cyber defense division in the army’s Cyber Defense Directorate.