On Apr 3, 2018, at 8:11 PM, jim bell <jdb10987@yahoo.com> wrote:

DHS may have found unauthorized Stingray devices in Washington DC https://www.yahoo.com/newsroom/vibes/politics/v-dbb2094c-7d9a-37c0-96b9-7f84...

Crazy link man. Anyway, anybody with the right radio hardware and a little Linux box with OpenBTS and maybe asterisks (or other software setup depending) can roll something like this out... Last i checked it didn’t support 3G but the phones can be tricked into switching down to 2G unencrypted if you blast a strong enough signal. Newer phones maybe more resilient? I don’t know how much more advanced the commercial stingrays are over the best roll-your-own... There are android apps that do IMSI catcher detection, but they have some issues.