Newer techniques for capturing data via HDMI cables are becoming more accurate and easier to decipher.
This technology allows data thieves to spy on screens, monitors, and of course smart TVs, provided they are in the right area or can capture the signal.
While this isn’t exactly a remote operation for hackers, it could allow individuals to obtain passwords, data, and other information being transmitted to the screen via the HDMI cable with greater accuracy than previously thought possible.
University of the Republic of Uruguay Tech Spot This method is already being used and the government is aware of it.
“It’s another way for governments and criminals to spy on your data.”
Hackers could steal data from government agencies by installing unobtrusive signal capture devices inside buildings and target areas to collect electromagnetic signals, or wireless antennas could capture signals from HDMI cables outside government facilities.
HDMI signals leak electromagnetic radiation as it travels between the source and the display, and hackers can capture those signals and extract and decrypt the data.
A team of researchers in Uruguay trained an artificial intelligence model based on existing electromagnetic radiation samples to decipher the intercepted signals, and the result is reported to be a 70% complete reproduction of the HDMI signal, accurate enough to read what’s displayed on the screen.
“Hacking the HDMI gives governments and criminals another way to spy on your data,” said Peter Gietl, editor-in-chief of Return. “It remains to be seen how effective the attack would be, but there are many different ways bad actors could gain access to your personal information. Unfortunately, if the NSA really wants your data, they’ll likely be able to get it.”
Return previously published “The Ultimate Guide to Escaping the Surveillance State,” offering readers simple solutions to protect their privacy.
Believe it or not, historically it was much easier to steal signals back in the days of analog video. Previous generations had more signal leakage from video cables, but with the advent of HDMI those signals have become more contained and harder to decipher when captured.
Lead researcher Federico Larocca argued that “governments are concerned about HDMI data extraction,” but added that data-sensitive institutions are likely already protecting their facilities from such exploits related to electromagnetic signals.
Even if it comes at a big cost, it’s worth it, LaRocca concluded.
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