I did not dig up for a detailed technical write up, but have a plenty media sites mentions (sorry for original Russian content):

Just news, mentioning this, back to 2016 https://lenta.ru/articles/2016/11/07/gpsoff/

Nice write up, also from 2016 https://meduza.io/feature/2016/10/19/teleportatsiya-iz-kreml...

News from Jan, 2018 https://snob.ru/news/156463

Nov, 2018 https://www.vedomosti.ru/politics/news/2018/11/12/786188-kre...

Hope that helps!

P.S. And yes, I personally see this behaviour near Kremlin. It's almost impossible to order a taxi nearby.

That does not happen all the time though. I would say geolocation works nicely pretty much all the time.

Not sure why it's not possible to order a taxi, since you're not supposed to provide your own coordinates but rather a point where you want to be picked up.

Wow, this is really happening. I'm surprised to hear this, very interesting, thanks!

You can also check [1]: "through a collaboration with researchers from The University of Texas at Austin, we expose the use of GPS spoofing in active Russian combat zones, particularly Syria, for airspace denial purposes. This is a capability scarcely reported in the public domain. Using data from a scientific sensor on the International Space Station (ISS), we are able to identify ongoing activity that poses significant threats to civilian airline GPS systems"

- works best on desktop though

[1] https://www.c4reports.org/aboveusonlystars

Well, yes. It's happening. That's why there's a report about it.

there are a number of videos on youtube of people operating handheld android, ios and dedicated gps devices near the kremlin, showing the location displayed on the screen to be many dozens of km away. this will have a similar effect on a $1000 DJI drone.