Cybersecurity researchers have uncovered vulnerabilities in several LG smart TVs that could allow an attacker to access the built-in microphone, scan local networks, and potentially gather information about connected devices. The findings highlight the importance of reviewing smart TV security and privacy settings.
Why LG TVs Are Under Security Scrutiny
Investigations by Gamers Nexus, Level1Techs, and independent security researchers examined network activity, firmware behavior, and security weaknesses in LG’s webOS software. The researchers found that compromised TVs could identify devices on the same local network—including phones, computers, printers, and smart-home hardware—and detect nearby Wi-Fi networks. Remote-code-execution vulnerabilities were also reported, though full technical details remain undisclosed pending responsible disclosure.
Can a Hacked LG TV Listen to Conversations?
One of the most concerning findings is that a compromised TV can capture room audio even when the display appears to be off. Researchers demonstrated that audio could be stored while the TV remained offline and later transmitted when network connectivity returned. However, this does not mean every LG TV secretly records conversations—the demonstration involved a device already under an attacker’s control.
LG’s Response and Privacy Protections
LG issued a privacy statement on September 12, 2026, stating that its TVs do not continuously record or transmit conversations. Voice processing begins only after a supported wake word or remote button activation. For hands-free features, the TV monitors locally for the wake word and discards audio when none is detected. Some models also include a hardware microphone switch for manual disablement.
Automatic Content Recognition (ACR) and Tracking
LG smart TVs use Automatic Content Recognition (ACR) to create digital fingerprints of content, enabling personalized recommendations and advertising. LG states that ACR is activated only with user consent, and network scanning is described as a connectivity feature. Researchers also reported network-device discovery, which could reveal more about connected households.
How LG TV Owners Can Reduce Risk
- Install firmware updates promptly to patch known vulnerabilities.
- Review privacy and consent settings—disable ACR, personalized ads, and unused voice features.
- Place the TV on a separate guest or IoT network to limit access to other devices.
- Disable UPnP unless needed, and avoid exposing TV services to the public internet.
Should LG TV Owners Be Worried?
Current findings demonstrate a potential security scenario, not routine surveillance. Smart TVs deserve the same security attention as computers and smartphones. Keeping firmware updated and regularly reviewing privacy settings can significantly reduce risk.