Spying on conversations by looking at the light bulb in another house? If possible

Must Read

WhatsApp activates a new function to “verify” messages forwarded through the browser

For some time we have been able to forward messages on WhatsApp. Similarly, every time we receive a forwarded message, the application indicates that...

WhatsApp on various devices: the beta already shows where you can manage them

There are many months that we have been waiting for that long-awaited function of allow us to use WhatsApp on more devices than just...

You can already detect ‘fake news’ through WhatsApp, do you know how?

Since the pandemic started and we were all confined in mid-March, There have been many news that have reached the media talking about the...

WhatsApp will no longer let you take screenshots in chats

This new feature will come to WhatsApp very soon, where it will now be impossible to take screenshots in conversations and have more privacy. This...
Brian Adam
Professional Blogger, V logger, traveler and explorer of new horizons.

It is not known if it will be for work or entertainment, but it certainly takes a lot of ingenuity to imagine that it is possible to guess what is being talked about in a room just looking at a light bulb that is on. But they have succeeded and, of course, as a method of espionage is priceless … unless someone gives to run the curtains.

And they just discovered that analyzing the vibrations that are produced by the action of sound waves in a light bulb it is possible to listen remotely a conversation, or a song, without problems. As if we were in front of it, which is a milestone for those security agencies that are so eager to know what they say about others.

Look into the light and listen

This system they just developed It is called Lamphone and it is just as the word that has been invented, a mixture of the light bulb and telephone because it is possible to analyze what is being said in a house with many meters of distance, up to 25. And its foundation is very simple because what this system does is to analyze the vibrations that are generated in the light bulb by the impact of sound waves, and affecting the light it emits, in such a way that it is possible to reconstruct the source that causes them.

To start this Lamphone, an electro-optical sensor is necessary that allows scrutiny of the smallest detail of each change in the light that occurs in the bulb. Subsequently, that signal captured by the sensors must be channelled through a remote surveillance device such as a telescope.

Once we can capture that analogue signal that is generated naturally in the light bulb, just it must be transformed into another digital one thanks to a DAC, to convert it back into a sound that we can hear. Wired, which is the medium that has published this research, shows two examples of how it is possible to reconstruct what is being heard in a room many meters away. And the results are surprising because both President Trump’s words, and a Coldplay song, are fully identifiable when they go through the Lamphone process.

Of course, despite the enormous sophistication that the idea of ​​this espionage system exudes, everything can fall apart if that person they are spying on decides to draw the curtains or lower the blinds. That would end everything.