In a recent report by the "Daily Mail," Netease Technology News highlighted a study conducted by the non-profit organization Open Effect in collaboration with the University of Toronto. The research revealed that many popular fitness trackers on the market can expose personal data through their Bluetooth signals, making them vulnerable to tracking by hackers—even when Bluetooth is turned off. Devices such as Basis, Fitbit, Garmin, Jawbone, Mio, Withings, and Xiaomi were found to have these vulnerabilities, while the Apple Watch was the only device meeting industry privacy standards.
Health tracking devices are widely used to monitor user activity and calculate calorie burn, acting as personal trainers. However, during use, they also collect sensitive user data like name, age, and gender, which may be exposed when transmitting data via Wi-Fi. In this collaborative study, researchers tested several leading devices and discovered that most of them carry a unique identifier that allows third parties to track users globally and at any time.
The study further showed that these identifiers can still leak information even when Bluetooth is disabled. Andrew Hilts, one of the researchers, emphasized that the industry has established Bluetooth privacy standards to protect user data. "We're urging manufacturers to adopt these standards to improve security," he said.
Additionally, the report pointed out that the data generated by these devices could be manipulated. Since such data is often used for insurance or legal purposes, tampering risks undermining its reliability. Some companies, including Fitbit, Intel Basis, and Mio, have responded to the findings and expressed willingness to discuss privacy and security concerns. Fitbit, in particular, has agreed to implement Bluetooth privacy protection standards, making the Apple Watch the only device currently compliant with these measures.
Cleaning Blade
The Cleaning Blade is a kind of Printer Accessories.
The cartridge is irradiated by laser beam to adsorb toner, and then the toner is hot pressed by fixing roller for printing. In this process, there will be part of toner residual, which can not be "granules returned to the warehouse"; Automatic cleaning function is not adsorbed new toner particles and directly print, will remain toner away, fully ensure the next printing effect. And the Plate-Grid plays an important role. When high voltage generator to a high voltage electrode, wire electrode with reseau formed between a strong electric field, and release the corona, wire electrode and the photosensitive drum ionizes the air between the air ions migrate to the drum surface, make the photoconductor (drum) surface is full of charge, so can spare toner "adsorption to warehouse", so as to save toner, The purpose of reducing environmental pollution.
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