News Spies Can Listen to Your Conversations by Watching a Light Bulb in the Room

You might not believe it, but it's possible to spy on secret conversations happening in a room from a nearby remote location just by observing a light bulb hanging in there—visible from a window—and measuring the amount of light it emits. A team of cybersecurity researchers has developed and demonstrated a novel side-channel attacking technique that can be applied by eavesdroppers to recover
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