A team from the University of Twente and the Amsterdam University of Applied Sciences have published a paper demonstrating gross overbillings by smart energy meters, ranging from -32% to +582% of actual power consumption.
Ironically, the overbilling is largely an artifact of power-saving features, which introduce line-noise that confuses the meters.
Overall, five of the nine smart meters gave out readings much higher than the actual amount of power consumed, while two gave lower readings.
The greatest inaccuracies were seen when researchers combined dimmers with energy saving light bulbs and LED bulbs.
After finishing their lab experiment, researchers dismantled the smart meters to understand the problem. Following their efforts, the three-man research team discovered that smart meters which gave abnormally high readings used a Rogowski Coil in their setup, while the smart meters that gave out low readings used Hall effect-based sensors.
[Frank Leferink, Cees Keyer and Anton Melentjev/IEEE Electromagnetic Compatibility](Sci-Hub mirror)
[Catalin Cimpanu/Bleeping Computer]
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Wikileaks’ seismic Vault 7 release didn’t follow the usual Wikileaks procedure: perhaps in response to earlier criticism, the organization redacted many of the files prior to their release, cutting names of CIA operatives and the sourcecode for the cyber-weapons the CIA had developed, which exploit widely used mobile devices, embedded systems, and operating systems.
Henk van Ess teaches workshops in online investigative techniques; he worked with colleagues and a team of students from Axel Springer Academie to analyze a viral news video that purported to show a discarded missile launcher that had been discovered near Cairo’s international airport in 2011, but only published last month.
It’s an exciting and treacherous time to be a consumer. The benefits of new digital products and services are well documented, but the new risks they introduce are not. Basic security precautions are ignored to hasten time to market. Biased algorithms govern access to fair pricing. And four of the five most valuable companies in the world earn their revenue through products that mine vast quantities of consumer data, creating an unprecedented concentration of corporate power. A recent survey at Consumer Reports showed that 65% of Americans lack confidence their data is private or secure, with most consumers feeling powerless to do anything about it.
It may be too late to stop the selfie stick craze entirely, but the ARMOR-X Mini-Flexible Phone Tripod is valiantly attempting to anyway. This lightweight, ultra flexible tripod has infinite greater flexibility and functionality than a selfie stick, and actually looks like something a real photographer might use.The ARMOR-X is completely intuitive and easy to set up anywhere: on […]
It’s time to go full Katy Perry in the shower (or Frozen, or Slipknot – whatever you’re into, no judgements here) with this waterproof Bluetooth Speaker. This speaker is easy to install in your shower and streams audio from your smartphone or computer, giving you a nice background chorus in the mornings. With a built-in microphone and speakerphone, it’ll […]
Whether you’re stranded in the Yukon territory after a crash airplane landing or hiding from a Jason impersonator, this handy 5-in-1 Survival Bracelet will provide the tools you need to come out safely on the other side.This 9-inch bracelet holsters a a 10.5-foot long rope for creating fishing lines, making traps, binding rafts or whatever your imagination can conjure. That’s just […]
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