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Privacy

As explained in Data for All

The safeguarding of information about people against unauthorized collection, access, use, disclosure, or retention.

When you share a photo, search for an answer, or ask a voice assistant for help, who can learn about you—and what can they do with that information? Privacy includes freedom from unwanted observation or intrusion and the ability to choose what personal information to share. What feels private varies with the person, culture, and situation. section 5.1 section 4.4.1

Privacy is more than keeping a secret. People also need room to choose how open to be with others. That need has not disappeared because the internet makes sharing fast and easy. The need for privacy and a legal right to privacy are related but different: the need is longstanding, while legal protections have developed over time. section 5.2.1 section 5.2.3

Several questions help make a privacy choice concrete:

  • What information are you giving away? Online platforms can collect data to model behavior and target messages or offers. section 2.5.1
  • Who can use or change it? Access, modification, deletion, and active management of personal data are capabilities people may lack on platforms they use. section 4.4.1
  • What protection does a promise actually provide? A privacy feature may address one kind of record without stopping collection elsewhere. section 5.13

What “incognito” does not mean

Opening an incognito window in Chrome may keep browsing activity out of the local browser history. It does not mean the sites you visit or other places handling your traffic stop recording activity. Ask which records a feature affects before treating it as a privacy guarantee. section 5.13

Privacy also depends on institutions, not just individual choices. Laws such as the EU’s General Data Protection Regulation and California’s Consumer Privacy Act are part of an evolving effort to protect personal data. Where sharing is valuable, as with health research, safeguards can include restricted access, encryption, trained staff, and safe research environments. section 2.6.1 section 5.10

You do not have to accept that privacy is gone, nor do you have to make every choice alone. Consider who receives your data, what control you retain, and whether a promised protection matches what the technology does. Your choices matter, while stronger protections also require changes by organizations and governments. section 5.2.1 section 5.10

How Data for All covers it

How deep it goes
Defines privacy and distinguishes human need from legal right, then examines practical limits without teaching technical implementation.
Examples
Uses connected household devices and Chrome’s incognito mode to show everyday concerns and the limits of a privacy feature.
What it assumes
Starts with ordinary online activity and plain-language definitions rather than assuming specialist knowledge.
What you can do after
Evaluate/understand privacy claims by checking what remains recorded and considering whom to give personal data.
How it connects
Connects privacy to trust, data ownership, human psychology, technology, and data protection law.

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This explainer was generated by Manning's knowledge graph from the text of Data for All. The section links point to the parts of the book it draws on.