Tech

Does opting out of smart TV tracking work? Research finds “suspicious” traffic.

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Based on a feed excerpt; full article content has not been acquired. Source evidence retrieved 21/10/2026, 20:43:24 UTC.

Briefings

Research published on Monday by Northeastern University researchers reveals that smart TV operating systems from major brands like Samsung, Vizio, and Roku continue sending data to automatic content recognition (ACR) endpoints even after users opt out of tracking. The study analyzed eight OSes across 12 TVs from 10 manufacturers to determine when ACR activates and how well users can block it. This finding suggests potential privacy violations despite user settings, as ACR captures video screenshots or audio clips and sends them to remote servers for content viewership measurement and targeted advertising.

Key points

• Smart TV operating systems from Samsung, Vizio, and Roku continue sending data to automatic content recognition (ACR) endpoints after users opt out of tracking, according to a study published on Monday.
• The paper examined eight smart TV operating systems across 12 smart TVs from 10 manufacturers to examine when smart TVs use ACR and how effective opting out of user tracking is.

Context

ACR captures video screenshots or audio clips from smart TVs and sends the data to remote servers, where it's used for things like measuring content viewership and serving targeted ads. The study examined eight smart TV OSes across 12 smart TVs from 10 manufacturers to examine when smart TVs use ACR and how effective opting out of user tracking is.

Limitations

The evidence is limited to a single research paper published on Monday, with no additional background or context provided. The study examined eight smart TV OSes across 12 smart TVs from 10 manufacturers, but the specific dates of user opt-outs and the exact timing of ACR activation are not detailed in the provided evidence.

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