On Tuesday, January 28, 2020, 09:54:39 AM PST, coderman
   <coderman@protonmail.com> wrote:

   ттттттт Original Message ттттттт
   On Tuesday, January 28, 2020 7:16 AM, jim bell <jdb10987@yahoo.com>
   wrote:

"WIRED: One Small Fix Would Curb Stingray Surveillance.

   [1]One Small Fix Would Curb Stingray Surveillance
   '''The telecom and tech industries could overcome these challenges if
   they decided to prioritize a fix. That's a big if. Nasser points to a
   solution that would [2]function a lot like HTTPS web encryption,
   allowing phones to quickly check cell tower "certificates" to prove
   their legitimacy before establishing a secure connection. Last year,
   Hussain and colleagues from Purdue and the University of Iowa
   [3]developed and proposed such an authentication scheme for the
   bootstrapping process in 5G."
   "As long as phones will connect to anything advertising itself as a
   tower, itтs kind of free-for-all," Nasser says. "This problem is big
   low-hanging fruit, and there are many ways things could get better I
   think."
   >never gonna happen :(
     would be nice, though...
   A few years ago, I read that a disused, old cell phone (with no active
   subscription) would activate in the presence of one of these Stingray
   devices.  I never checked that idea out, mainly due to lack of
   motivation, and also since I don't know where such an operating
   stingray might be at any given time.   But if the power consumption of
   such a phone could be monitored continuously, that might implement a
   cheap, easy "Stingray detector".
                Jim Bell

References

   1. https://www.wired.com/story/stingray-surveillance-cell-tower-pre-authentication
   2. https://www.wired.com/2016/04/hacker-lexicon-what-is-https-encryption/
   3. https://dl.acm.org/doi/10.1145/3317549.3323402