I don’t understand why cell phones don’t authenticate the towers they connect to. Is this really just a “standards lag behind modern security” thing, or is it on purpose to allow these Stingray devices to be used?
IMEI/IMSI are collected (and immediately linked, hence deanonymized even if SIM was inserted only once) by cell tower operators. Just not bring your device, period.
Yeah, I agree with that personally, but realistically, “your phone was near a place” is not the same as “you were involved”. If they hijack a phone onto a Stingray, they can get way more info than just IMEI.
The use of Stingray by US law enforcement has been challenged on grounds that the law enforcement agencies have no spectrum license. Those challenges seem not to have found success.
On the other hand, prisons in the US have been stopped from operating cell phone jammers on prison grounds, on the same complaint of no spectrum license.
I don’t understand why cell phones don’t authenticate the towers they connect to. Is this really just a “standards lag behind modern security” thing, or is it on purpose to allow these Stingray devices to be used?
IMEI/IMSI are collected (and immediately linked, hence deanonymized even if SIM was inserted only once) by cell tower operators. Just not bring your device, period.
Yeah, I agree with that personally, but realistically, “your phone was near a place” is not the same as “you were involved”. If they hijack a phone onto a Stingray, they can get way more info than just IMEI.
Think long term movement patterns, correlations with others such, anomaly detection.
Even if they did, I don’t see government having trouble getting a proper authentication key.
I believe it’s because they assume it’s not necessary because it was until now
… so I imagine there was no authentication because there was no practical threat beside few “fun” examples in CCC or DEF Con.
The use of Stingray by US law enforcement has been challenged on grounds that the law enforcement agencies have no spectrum license. Those challenges seem not to have found success.
On the other hand, prisons in the US have been stopped from operating cell phone jammers on prison grounds, on the same complaint of no spectrum license.