More Ways for Your Smartphone to Track Your Every Move

The super cookies the telecoms were using can now be (almost) replicated thanks to the W3C apis to give websites access to data that no website needs. How Your Smartphone Light Sensor Could Help Websites Track You

Does a website really need to access the amount and the red/green/blue character of the ambient light in your location? I wish someone at W3C would explain the use case.

Well it’s clear that the advertisers have a use case.

Tapping into this data, it will be possible to “profile, detect, recognize and track” users and their behavior, such as what time they usually work, what lighting conditions they prefer, and how frequently they are in their house or office, according to [Lukasz] Olejnik.

Not just advertisers who might be interested in that data.

I wish people would consider the security implications of things before running headlong off a cliff.

Already these APIs are in Firefox. Coming soon to Chrome and Opera (not sure if this means the APIs are being added to Chromium base, or if other Chromium browsers will be impacted). They may be coming to Safari as well.

You can eliminate this from Firefox by going to about:config and changing “device.sensors.enabled” to “false.”

The more recent results posted to twitter show these sensors being used (in the wild) in industrial espionage.