Senior research fellow Gary Miller spoke to Financial Times about attempts to exploit mobile network vulnerabilities to track US personnel during the Iran war. 

“Iran absolutely has capabilities to get real-time, immediate, and continuous location information,” he said. “It would surprise me very much if Iran were not using SS7, or mobile network access in the region, to track US users.”

According to Miller, at least some of the tracking attempts can be linked to an Iranian mobile phone operator. “This appears to be very specific user targeting,” he said.