What sort of attack? Like stealing data? Or something else that you wouldn’t pick up on? Because attack sounds like you are degrading performance or something, in which case we (or someone) would know about it.

<mode: conspiracy> One attack could be a RF receiver in any of the Huawei cell towers or networking equipment to accept a signal to start someone. </mode>

it sounds like an outrageous opening scene from an 80's movie...

Still better plot than coding a GUI in Visual Basic to trace an IP address.

An offensive RF/cyber operation would be very interesting indeed.

> Maybe they weren't just surveilling, but actually attacking cell networks and/or mobile phones through a vulnerability that requires line-of-sight. Just speculation though.

Wouldn't it be easier to get LOS to all the same targets without drawing attention to yourself via something like a car or a normal airplane?.