Signs of Secret Phone Surveillance Across London
Interestingly enough, during last trip to London, my phone (Nexus 5 running Cyanogenmod 12.1) was able to somehow detect <i>something</i> fishy and warned me several times "Network may be monitored by an unknown 3rd party". Among others, I've seen this warning two times out of two when passing by Cheapside/St Martin's corner - next to the St Paul's Cathedral.<p>At the time I just dismissed this as some tinfoil hat developer adding some nonsensical warnings to the firmware, but in retrospect, after reading this article - this matches perfectly, chances are - phone was indeed detecting Stingrays. Still no idea how it managed to do it.<p>EDIT: I had no data/IP connection of any kind at and around the time of seeing this, so this is clearly unrelated to TLS interception.