Inferring car movement patterns from passive TPMS measurements

(networks.imdea.org)

22 points by wisdomseaker2 hours ago

2 comments

  • RyJones21 minutes ago
    I built a demo of this back when I worked at Qualcomm in Seattle; match this with WiFi beacons and you can trace a person fairly well. It&#x27;s been over a decade, but at the time both iOS and Android would send pings fairly frequently to all known WiFi networks looking to see if they should switch to a faster one. With your device ID, list of SSIDs you know, and your TPMS data, a person can learn a lot about you.<p>Like, where do you work? Where do you stay (Hotel SSIDs)? Who are your friends (other people&#x27;s home SSIDs)?
  • EvanAnderson1 hour ago
    I have an RTL SDR setup in a retail business receiving temperatures from sensors around the property. Besides the neighbors&#x27; weather stations I see a lot of TPMS coming, presumably, from the parking lot. I see the same cars regularly. I could definitely correlate them with the POS terminals and identify individual customers.
    • 0x3f26 minutes ago
      Most places where this would be legal there are probably much more effective ways to do it at the POS, even non-biometrically. Although yes you might consider usng TPMS as part of an ensemble.