Spies And Hackers Can Eavesdrop On Conversations From 82 Feet 25 Metres Away By Analysing The Vibration Patterns In A Hanging Light Bulb A Study Has Found

Spies and hackers can eavesdrop on conversations from 82 feet (25 metres) away by analysing the vibration patterns in a hanging light bulb, a study has found.
The 'lamphone' technique discovered by security experts from Israel needs only a laptop and gear — including a telescope and sensor — costing less than just £1,000. 
According to the team, they did not develop the lamphone to eavesdrop on people — but to highlight the potential vulnerability.
For those concerned about the security implications, however, the technique is easy to thwart — one simply needs to pull the curtains, or invest in a big lampshade.
Scroll down for video
Spies and hackers can eavesdrop on conversations from 80 feet (24 metres) away by analysing the vibration patterns in a hanging light bulb, a study has found (stock image)
The 'lamphone' technique discovered by security experts from Israel needs only a laptop and gear — including a telescope and sensor — costing less than just £1,000.

Pictured, an illustration of how the 'lamphone' method can use the vibrations of a light build to reconstruct audio from a distant room
<div class="art-ins mol-factbox floatRHS sciencetech" data-version="2" id="mol-b94f0bb0-afb8-11ea-bc05-dfafd6293202" website can eavesdrop from 80 feet away by watching light bulbs