1. Big Brother is Watching!
PostPC Computing
Big Brother is Watching!
Prof. Scott Kirkpatrick, HUJI
Amnon Dekel, HUJI, Bezalel
6/27/2019
PostPC 2002

2. Big Brother is Watching
Personal Position Tracking using GPS equipped cell phones is here.
Phones transmit location information once every t minutes to server
Authorized user can check position on map (PC screen, PDA, cell phone)
User can set up “geofences” and get alerted when a phone exits or enters the perimeter
User can see position history and paths
6/27/2019
PostPC 2002

3. Big Brother is Watching
6/27/2019
PostPC 2002

4. Big Brother is Watching
6/27/2019
PostPC 2002

5. How it works Hybrid GPS / nearest Cell Antenna localization
Location data is transmitted to server
6/27/2019
PostPC 2002

6. Social impact
Worried parents can see where their loved ones are at “all” times
Worried parents can get alerted when their loved ones enter or exit a “geofence”
Worried partners can “spy” on their spouses location
Employers can monitor their workers
6/27/2019
PostPC 2002

7. Social impact Major question: privacy concerns Possible Backlash:
Who has the right to use the location data?
Can law enforcement use it?
Can advertisers push location sensitive ads?
Possible Backlash:
Turn off the phone
Exchange phones
Leave the phone
Other creative possibilities
6/27/2019
PostPC 2002

8. Impact on your Projects
What effects do these issues have on your projects?
User Authorization/Authentication?
Opt in?
Privacy filter?
UI?
Legalities?
6/27/2019
PostPC 2002