It's an example of the old code that is bequeathed to popular software programs we take for granted.

The persistent espionage makes all the sense in the world.

"We think it’s important to have that safe harbor language out there to set expectations," said ESS's Chris Wlaschin.

There's another Bluetooth vulnerability on the market, according to DBAPPSecurity research presented at Black Hat 2020.

The EFF's Crocodile Hunter includes an API that gathers data on IMSI catchers and shares it with other researchers.

Trend Micro spent multiple months trying to help get patches issued for the devices, with mixed success.