LG Smart TVs Capture Audio and Network Data Even When Powered Off

A detailed investigation led by Gamers Nexus, with assistance from Level1Techs and independent security experts, uncovered alarming behaviors in LG's OLED TV software. The TVs were found to be actively scanning the local network for other devices and recording details about nearby Wi-Fi networks, regardless of user settings.

The situation becomes significantly more concerning when considering audio capabilities. The investigation confirmed that these televisions are capturing and recording ambient sound, including private conversations within the home, even in a state where owners expect them to be inactive. Furthermore, if an internet connection is lost, the device continues to store these audio recordings locally. Once connectivity is restored, the TV automatically uploads this collected data to LG's Ad Solutions service.

While some users might accept network scanning as a standard feature of smart home devices, recording audio without active user engagement crosses a significant privacy threshold. The implications are clear: the device effectively acts as an uninvited listener in private spaces.

Beyond data harvesting, the investigation identified critical security vulnerabilities within LG's software that allowed researchers to perform remote code execution on the televisions. This capability provides malicious actors with a direct entry point to compromise the system and potentially gain control over the device. Fortunately, these vulnerabilities are being responsibly disclosed, and LG is expected to issue patches soon.

This incident highlights a broader trend in the smart TV market where data collection has become a common, albeit often intrusive, aspect of operation. To mitigate risks, experts recommend keeping TV firmware updated to the latest version and isolating these devices on a separate guest network. This approach limits the potential impact of any security breach or unwanted data transmission to the rest of your home network.

For now, owners should review their privacy settings and remain vigilant about what permissions they grant to smart home appliances. The combination of passive audio recording and exploitable security flaws makes this a critical issue for LG electronics users who value their digital privacy.