Tag Archives: Electromagnetic

This Malware Can Transfer Data via USB Emissions from Air-Gapped Computers

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Air-gapped computers that are isolated from the Internet or other networks and believed to be the most secure computers on the planet have become a regular target in recent years.

A team of researchers from Ben-Gurion University in Israel has discovered a way to extract sensitive information from air-gapped computers – this time using radio frequency transmissions from USB connectors without

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Fail of the Week: Magnetic Flow Measurement Gone Wrong

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Physics gives us the basic tools needed to understand the universe, but turning theory into something useful is how engineers make their living. Pushing on that boundary is the subject of this week’s Fail of the Week, wherein we follow the travails of making a working magnetic flowmeter (YouTube, embedded below).

Theory suggests that measuring fluid flow should be simple. After all, sticking a magnetic paddle wheel into a fluid stream and counting pulses with a reed switch or Hall sensor is pretty straightforward, right? In this case, though, [Grady] of Practical Engineering starts out with a much more complicated …read more

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