‘Canvas fingerprinting’ tracking method is sneaky but easy to halt


A method for tracking users across the Internet called “canvas fingerprinting” is simple to stop, but average Internet users may not know how to do it. A research paper concluded that code used for canvas fingerprinting had been in use earlier this year on 5,000 or so popular websites, unknown to most. Most but not all the sites observed used a content-sharing widget from the company AddThis.

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IoT inspires innovations in energy, wireless


The expected boom in demand for small, often isolated devices in the Internet of Things is driving developers to craft new types of components. Two developments announced this week should help IoT come together. On Wednesday at a trade show in Tokyo, researchers showed off a prototype of a tiny power supply that harvests energy from vibrations in the air so remote sensors and other parts don’t need batteries. And on Thursday, U.K. chip company Imagination Technologies announced a design for radio chips that can be used in small, power-sipping devices.

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