5 ms·
how granular is ss7 psl data? if it's decades old i suspect it isn't gps coords or anything (not diminishing the seriousness of this; mostly curious about wheth
by nyolfen 7y ago
how granular is ss7 psl data? if it's decades old i suspect it isn't gps coords or anything (not diminishing the seriousness of this; mostly curious about whether this is something the rest of us should be worrying about)
- arkadiyt 7y agoFrom the article: "users could probably have been tracked on a map to within hundreds of metres of accuracy in a city."
- gruez 7y ago>within hundreds of metres of accuracy in a city or basically a few city blocks.
- rsync 7y ago"how granular is ss7 psl data?" It's not based on physical distance or geography - it is based on the cell "tower". Basically, SS7 will tell you which cellular base station the mobile handset is registered on. There are easily accessible, public lookups of the location of all of those "cell towers".
- chiph 7y agoI use a micro/femto cell at home because of poor reception from the big towers. If they had access to those records, they could locate me to the street address (needed for E-911 service) now that I'm under a stay-home order.