A new hacking method was recently discovered by researchers at the University of the Republic of Uruguay, highlighting an unexpected vulnerability. Hackers can now use our HDMI cables to steal personal data. This sophisticated technique relies on the use of artificial intelligence to intercept and decode the electromagnetic signals emitted by these cables. Although this threat is mainly targeted at governments and industrial sectors, it does raise questions about data security.
How does the HDMI cable hack work?
Hackers begin by placing an antenna outside the target building. This captures the electromagnetic radiation emitted by the HDMI cables that transmit information from the computer to the screen. These signals, although weak, contain fragments of data that can be exploited.
Once the signals have been intercepted, the hackers use an artificial intelligence model to analyze and reconstruct the information. The researchers, led by Federico Larroca, trained their AI model to recognize patterns by comparing the original and intercepted signals. This analysis enables information to be decoded with surprising accuracy, despite the complexity of HDMI transmissions.
The results obtained by the researchers show that only 30% of the characters intercepted were incorrect, meaning that 70% of the data was legible. This level of accuracy enables hackers to reconstruct most of the text displayed on the screen, including sensitive information such as bank details or private messages. A feat that calls into question the security of many computer systems.
A shielded or optical cable to overcome the problem?
To counter the threat posed by this new hacking method, the use of shielded HDMI cables or optical HDMI cables can be considered. Shielded cables are designed to minimize electromagnetic radiation emissions, making it much more difficult for hackers to intercept signals. Fiber-optic HDMI cables, on the other hand, convert electrical signals into light signals, reducing the risk of leaks that could be picked up at a distance.
This solution remains hypothetical for the time being, and requires in-depth studies to confirm its total effectiveness against cyber-attacks. However, the use of better-quality cables can benefit the home theater experience. This insulation not only protects against external signals, but also prevents electromagnetic leakage from the copper wires inside the sheath. They also offer superior throughput and the guarantee of an image perfectly faithful to the latest display technologies, whether for gaming or home theater.
The discovery of this new hacking method once again underlines the ingenuity and perseverance of cybercriminals. Although this technique is mainly used in specific, sensitive contexts, it reveals a potential vulnerability in our data transmission systems. The use of shielded HDMI cables or fiber optics appears to be a solution that can counter this threat. However, it will be necessary to carry out exhaustive tests to confirm this.
Source: Digital Trends
