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Practical Ethics Laura Thomson [email protected] @lxt

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–Anonymous commenter “Do you think other browser makers collect this type of data?”

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Not an ethicist

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How To Be Perfect

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How To Be Perfect

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Practical Ethics

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Standard Disclaimers This is what we do. It’s not perfect. This approach is open source so you can steal it and make it better. Give us your feedback so we can make it better too.

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Lean Data Collect only what you need Keep it for the minimum amount of time Don’t violate user expectations

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Classes of Data

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Category 1: Technical Data Examples: OS, available memory, version number Generally okay to collect, opt-out

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Category 2: Interaction Data Examples: # of tabs, session length, config settings, feature use Generally okay to collect, opt-out.

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Category 3: Web Activity Data Example: browsing history Stickier. Usually no, but may be possible with mitigation.

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Category 4: Highly Sensitive Data Examples: email, username, identifiers Assume no. Maybe opt-in with advance notice, user consent, and secondary opt-out.

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Collecting data is simple 1. Request for collection 2. Review by data steward https://github.com/mozilla/data-review

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What is a Data Steward?

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“Case Law” Precedent Allows reasoning about data collection Suggests alternatives

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Privacy Preserving Data Collection

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Experiments

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–Rebecca Weiss, Director of Data Science ‘By not performing A/B tests before we release new features and products, we are guilty of administering massive uncontrolled experiments upon our users. The only outcome measure that we can observe as a result of these experiments is “how many users have we driven away since we released that feature?”’

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Case Studies

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How’d that happen? Good intentions, road to hell, etc No data collected No one felt empowered to say no

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What did we learn? More formal process Definition of red flags Deeper engineering review Documented escalation paths

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“Burn it all. Burn it to the ground.”

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Fin We can all do better. Learn from your mistakes. Steal these ideas. Steward your users’ data wisely. Come ask questions.

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References • https://wiki.mozilla.org/Firefox/Data_Collection • https://github.com/mozilla/data-review • https://wiki.mozilla.org/Firefox/Shield/PHD • https://testpilot.firefox.com/ • https://addons.mozilla.org/en-US/firefox/addon/firefox-pioneer/