'An overview of Smart TVs' slide deck from Fall Technology ... · PDF fileAspirational...
Transcript of 'An overview of Smart TVs' slide deck from Fall Technology ... · PDF fileAspirational...
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An overview of Smart TVs
Justin Brookman, OTECH Ian Klein, Stevens Institute of Technology
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What we’re going to cover
• Description of smart TV functionality and the smart TV ecosystem
• Highlight some of the consumer protection issues around smart TVs
• OTECH look at smart entertainment devices in the lab
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What is a smart entertainment device?
• Something that enables internet connectivity on a large screen format – Over‐the‐top (“OTT”) content – Interactivity
• Widespread streaming video content over internet available at least since mid‐2000s – Gaming consoles among first to bring to TV
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Potential benefits of smart TVs
• Access to more and more diverse content on a big screen
• Interactive programming
• Personalized recommendations • Alternatively:
– Fewer commercials – If ecosystem becomes more ad‐supported, potential for lower prices
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Data collection on smart TVs
• Delivery
• Research and product improvement • Measurement and ratings • Advertising
• Cross‐device tracking
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Tracking on smart devices
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Smart TVs
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Smart TVs
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“ACR”
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Cable providers
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Cable providers
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“Addressable TV”
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Smart peripherals
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Applications
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Aspirational Lumascape for Smart TVs
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What can be collected?
• How to keep state on users? – Cookies? Device IDs? IP address?
• Viewing habits • Voice/camera • Other nearby devices • Tie TV viewing to offline data
– Demographic targeting – Attribution
• Data minimization efforts – Deidentification/aggregation techniques – Data retention limitations – User controls
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Cross‐device tracking
• Also interest in linking smart TVs with other networked devices
• Useful for: – Seamless experience – Retargeting – Purchase attribution – Broader behavioral profile
• Can use probabilistic or deterministic methods – Probabilistic based on likely shared characteristics (IP) – Deterministic based on real‐world identifier (email, ultrasonic code)
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Transparency and controls
• What are consumer expectations for smart TV privacy?
• How message to consumers? – Privacy policy?
– Stand‐alone notice?
– Standardized notice like AdChoices icon?
• Are there consistent cross‐app (or cross‐platform) controls?
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Security
• Do smart devices get security updates? How regularly? For how long?
• Threat models – Can attack the TV/device (Is traffic encrypted?) – Can attack other networked devices – Can be leveraged to attack others (e.g., DDoS)
• Long‐standing area of interest to FTC – IoT report – 6(b) study of security updates to mobile phones
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How long are applications supported?
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Legal framework
• Section 5 of the FTC Act • COPPA
• Cable Act and Communications Act • VPPA
• ECPA
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Our study
• Looked at disclosures, data flows, and controls for three different smart TVs
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Transparency and control
• All platforms reserved broad rights to monitor viewing habits
• Defaults always in favor of collection for targeting, but interfaces varied
• All offered controls for device‐level targeting, but we didn’t always see a mechanism for controlling third‐party apps (and their third parties)
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Data collection
• Third‐party data sharing not as widespread as on web or mobile
• On two of the three TVs, regular encrypted communication with manufacturer’s servers
• The other TV reserved broad rights, but manufacturer did not appear to engage in regular data collection
• Available controls seemed robust – One TV ceased all regular communication, other reduced to minimal traffic
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Our findings
• Communications between Smart TV and “acr” server during DVD play
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Data collection
• Apps did communicate with third parties on the smart TVs – But typically considerably fewer third parties than see on web or mobile
– One app we looked at connected to more third parties on the TV than either web or mobile
• Did not see controls on how to limit app data collection and sharing practices
• Most app and third party traffic was encrypted • Often used cookies to keep state on users
– Possibly because less standardization of device identifiers than on mobile
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The future
• Still early days • May see more data collection if more standardization, more viewing over IP
• Will robust cross‐app (or cross‐platform) controls emerge? What self‐regulatory models will develop?
• Will consumer expectations evolve? Will privacy add‐on tools emerge (like we’ve seen with ad‐and tracker‐blockers)?
• Pay‐for‐content or ad‐supported?
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Panel 1: New Frontiers in Media Measurement and Targeting
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Panel 2: Consumer Understanding
and Regulatory Framework