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Some Smart Meters Broadcast Readings in the Clear
alphadogg writes "University of South Carolina have discovered that some types of electricity meter are broadcasting unencrypted information that, with the right software, would enable eavesdroppers to determine whether you're at home. The meters, called AMR (automatic meter reading) in the utility industry, are a first-generation smart meter technology and they are installed in one third of American homes and businesses. They are intended to make it easy for utilities to collect meter readings. Instead of requiring access to your home, workers need simply drive or walk by a house with a handheld terminal and the current meter reading can be received."
Perhaps more distressing, given trends in 4th amendment interpretation, I bet the transmissions are open game for law enforcement.
If someone wants to know who all houses in the neighborhood that are currently empty, yes this is the best way to do it. You can also identify which houses have no neighbors at home. I could also be very useful, if you are trying to improve your efficiency and are targeting more than one house at the same time.