LG smart TVs are capable of continuing to collect user data even without an internet connection or while in standby mode. This was revealed through testing of retail OLED models conducted by the channel Gamers Nexus.
Level1Techs and independent security researchers participated in the investigation. Network traffic analysis showed that the devices actively search for nearby gadgets, record information about Wi-Fi networks, and have the capability to save audio for later transmission.
The tests identified the searching for devices such as smartphones and smartwatches on the local network. The TVs also collected location data and information about neighboring Wi-Fi networks, transmitting this information to LG Ad Solutions.
Particular attention was drawn to the microphone, which, according to the investigation, can record sound while the TV is in standby mode. Even if the internet is unavailable, files are saved on the device itself and can be sent once the connection is restored.
Additional features and previous incidents
Among the identified features was Automatic Content Recognition (ACR). This technology uses audio and video samples to determine the displayed content, including the TV's own applications and material played through HDMI and other connected device ports.
However, ACR is not an exclusive LG technology. As noted on the RTINGS video channel cited during the investigation, almost all smart TV manufacturers use this function to identify what users are watching.
In July, Gamers Nexus also examined LG monitors. The channel indicated that some models automatically installed an application that collected data from the device and displayed pop-up windows for other company applications and McAfee antivirus. This incident prompted intervention from Microsoft, after which LG decided to disable advertising. This new case once again highlights the amount of data that smart TVs can collect, even when in standby mode or without network access.