From Newsgroup: alt.security
https://techxplore.com/news/2024-07-reveal-eavesdrop-hdmi-cables-capture.html
A trio of computer security researchers at Universidad de
la República Montevideo, in Uruguay, reports that it is
possible to reproduce text on a computer screen by
eavesdropping on its HDMI cable. Santiago Fernández Emilio
Martínez, Gabriel Varela, and Pablo Musé Federico Larroca,
have published a paper describing their discovery on the
arXiv preprint server.
Back in the days of CRT-based computer screens, hackers
learned early on that it was not difficult to translate
the electromagnetic radiation emissions into imagery
that revealed the contents of someone else's computer
screen. When the industry moved to LED-based screens,
which use HDMI cables, hacking became much more difficult
due to the vastly more complex signaling. In this new
study, the team in Uruguay has found that applying AI
to the problem makes it possible.
. . .
DisplayPort isn't much different.
Also, the monitors themselves give off EMR that,
perhaps with "AI" analysis, can also be compromised.
This means even optical PC->Monitor connections
won't help you.
"AI" has the time/patience to try EVERYTHING here
until signals yield image.
Now do 99.999% of people need to worry about this ?
No, not at all. However highly profitable targets
like banks, some industries and military systems
DO have to worry about signal spying. The spy
devices can be quite passive, hard to spot.
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