Seoul, South Korea — LG smart TVs are under renewed scrutiny after security researchers and consumer advocates said the sets collect far more data than most owners realize, including detailed viewing habits, inventories of other devices on a home’s Wi-Fi network, and in some cases audio captured through built-in microphones. The findings, circulating widely among privacy researchers and technology forums this week, have reignited debate over how much smart TV makers should be allowed to monitor inside customers’ homes.
LG has not disputed that its TVs use automatic content recognition (ACR) and network-discovery features, both of which are common across the smart TV industry. The company says the tools power recommendations, ad targeting, and troubleshooting support, and that users can disable most of them in the settings menu. Critics counter that the defaults favor data collection, the disclosures are difficult to find, and the practical effect is a near-constant stream of household information flowing back to LG and its advertising partners.
What Researchers Found
According to multiple independent reviews of LG’s smart TV software, the devices routinely scan local networks to identify other connected hardware — including phones, laptops, smart speakers, and IoT devices — even when that equipment has no relationship to the television itself. Researchers say this kind of scanning can be used to build a fuller picture of a household’s device ecosystem, which is valuable for targeted advertising but goes beyond what most users would expect a television to do.
Separately, ACR technology embedded in LG TVs captures snapshots of on-screen content — whether from cable, streaming apps, or a connected game console — and matches them against a reference database to identify what is being watched. That data is typically used to refine advertising profiles. LG’s privacy documentation discloses ACR, but researchers argue the language is broad enough that many consumers do not realize it applies to everything displayed on the screen, not just LG’s own apps.
Audio Capture Questions
The most alarming claims involve audio. Some researchers reported instances in which LG TVs appeared to log audio-related activity even when the screen was off, raising questions similar to those NarwhalTV covered in its earlier report on LG Smart TVs Caught Logging Audio With the Screen Off. Voice assistant features built into many LG models require a microphone to remain listening for a wake word, and privacy advocates say the boundary between passive wake-word detection and broader audio logging is not always clear to consumers or, in some cases, verifiable from the outside.
LG has said its voice features only transmit audio to its servers after a wake word is detected, consistent with practices used by other manufacturers such as Samsung, Vizio, and Roku. However, the company has not published independent, third-party audits confirming this behavior across all of its television lines, which researchers say makes it difficult for consumers to verify the claim on their own.
Industry-Wide Pattern
LG is far from alone in facing these criticisms. Smart TV manufacturers across the industry have built business models partly around data collection and advertising, a shift that accelerated as hardware profit margins shrank and companies looked for recurring revenue streams. The Federal Trade Commission has previously taken action against television makers, including a $2.2 million settlement with Vizio in 2017 over unauthorized viewing-data collection, signaling that regulators consider this an active area of concern.
Consumer distrust of connected devices monitoring the home has grown alongside other reports, including concerns raised about wearable technology, such as NarwhalTV’s coverage of how police fear Meta smart glasses enable covert recording. Advocacy groups argue that as more household objects gain internet connectivity and sensors, the burden falls on manufacturers to make data practices transparent by default, not buried in lengthy terms-of-service agreements.
What LG Owners Can Do
Privacy researchers recommend several steps for LG TV owners concerned about the reported behavior:
- Disable ACR and viewing-data collection through the settings menu, typically found under a “Privacy” or “Live Plus” option.
- Turn off voice assistant features if they are not regularly used, which can reduce microphone activity.
- Review network permissions and consider placing smart TVs on a separate guest network, limiting their visibility into other household devices.
- Check for firmware updates, since manufacturers occasionally adjust default privacy settings in response to public pressure or regulatory scrutiny.
“Consumers shouldn’t need a networking background to understand what their television is doing on their home network,” one privacy researcher who reviewed the findings said, echoing a sentiment shared broadly among the advocates who raised the issue.
What Comes Next
LG has not announced any policy changes in direct response to the latest findings, though the company has previously updated privacy settings following public criticism. Consumer groups say they plan to press regulators, including the FTC, to examine whether current disclosures meet legal standards for informed consent. Until then, experts say the most reliable protection remains manually adjusting settings — and staying alert to the growing list of household devices, from televisions to wearables, quietly gathering data in the background.
