> So they stand between you and the tower and sift through the transmission first. This means they can now intercept data on that transmission. I don’t know what they can do with it, and there is no real clear information on what data they can get. They do say metadata and access the cellphones internal storage, so that is enough to want to block the Stingray.

Cellphones internal storage? Seriously?

"Service update" SMS messages can write certain things to the SIM card and other aspects of the phone without user interaction.

(this machinery is rather hard to google for and I'm not sure if it has a better name in the official GSM documents)

assblaster

That's interesting, it sounds like something that was being repeatedly sent to my Motorola flip phone in China in 2007. I had the ability to reject this SMS/MMS thankfully.

rasz

No, that was most likely spam. You cant even see service updates(OTA), just like silent sms(type0) they are invisible to the user.

https://github.com/CellularPrivacy/Android-IMSI-Catcher-Dete...