Hidden Residential Proxies in Smart TVs: LG Bans SDKs After Discovery of Widespread Abuse

Introduction

An investigation by Spur.us has uncovered systematic abuse on Smart TVs: over 42% of applications for webOS (LG) and more than 25% for Tizen (Samsung) integrate residential proxy SDKs, silently turning televisions into relay nodes for third-party traffic. In response to the severity of the issue, LG has announced the immediate suspension of any app that does not remove these components, stating that such use is not in line with the intended purpose of their devices.

Technical Analysis

Residential proxies allow internet requests to be routed through domestic connections, masking the original IP address. On Smart TVs, this mechanism is implemented via SDKs primarily provided by companies like Bright Data, integrated into seemingly harmless apps (games, screensavers, utilities) distributed for free on official stores. Developers are compensated based on installations or the volume of traffic generated, creating a strong financial incentive.

During installation or first launch, users are presented with vague consent requests (e.g., "authorize network sharing to enhance your experience"), often accepted without real understanding, sometimes by minors. Once activated, the proxy service remains running in the background – even in standby – maintaining a persistent connection to the provider's servers and forwarding traffic requested by the service's clients. This consumes bandwidth, CPU, and memory, turning the TV into a permanent node in distributed networks used for aggressive web scraping, geo-evasion, or malicious activities.

Impact

The impact on users is multidimensional:

• Resource and bandwidth consumption: slowdowns of the home connection and degradation of TV performance.
• Legal liability: if the node is exploited for illegal actions (cyber attacks, unauthorized scraping), law enforcement can trace back to the home IP address, exposing the owner to investigations.
• Expanded attack surface: the ungoverned data flow opens potential entry points to the local network, facilitating lateral movement to other devices (computers, smartphones, IoT).
• Privacy violation: the proxy provider can intercept and analyze network traffic, turning the TV into an open window into the family's digital life.
• Reputational damage: the discovery undermines trust in official stores and app review processes, showing that current controls are insufficient to protect users.

Mitigation

LG has responded decisively, mandating the immediate removal of proxy SDKs from all apps on webOS and threatening suspension for those that do not comply. In parallel, the company has announced a strengthening of submission validation procedures to intercept malicious components before publication.

For users, some best practices can reduce the risk:

• Carefully review requested permissions, being wary of apps that ask for background network access without a clear functional need.
• Immediately uninstall applications that display abnormal or opaque consent requests.
• Periodically monitor home network traffic through the router's admin interface or analysis tools, identifying unusual flows from smart devices.
• Keep TV software updated and install apps only from official stores, reporting suspicious behavior to the vendor.

Samsung has not yet formalized similar countermeasures, but industry pressure and the scale of the problem make future alignment toward stricter policies likely.

FAQ

1. What are residential proxies and why do they end up in Smart TV apps?
These are services that leverage devices with home connections (like Smart TVs) to route third-party traffic, masking the original IP. They are integrated via SDKs into free apps (games, utilities) because providers (e.g., Bright Data) pay developers per install or traffic volume, generating revenue at the expense of user transparency.

2. How can I tell if my Smart TV has been involved and what are the immediate dangers?
Warning signs include abnormal bandwidth consumption, home network slowdowns, or drops in TV performance. Check your router dashboard: if you notice suspicious traffic when the TV should be idle, it may be exploited as a proxy. Dangers range from bandwidth theft to potential legal liability for activities carried out through your IP, up to the risk of intrusions into the local network.

3. Is LG's action enough to solve the problem? What will Samsung do?
LG has deployed a two-tier strategy – forced removal of SDKs and strengthened app review – that should contain the phenomenon on its TVs. However, it remains an ongoing challenge, as developers may seek new workarounds. Samsung has yet to announce official initiatives, but LG's experience and the seriousness of the case will likely push the entire industry toward stricter requirements to protect smart ecosystems.