Quiz Entry - updated: 2026.07.14
What three dimensions define "privacy in big data"?
Control over information, prevention of identification, and the balance of utility vs confidentiality.
| Dimension | What it means |
|---|---|
| Control over information | Individuals keep authority over how their personal data is used, shared, and processed by organizations and third parties. |
| Prevention of identification | Protection against being identified, profiled, or tracked through data-analysis techniques. |
| Utility vs confidentiality | The central balancing act — extract valuable insight while preserving individual privacy. |
Why the third one is the crux: perfect confidentiality (delete everything) gives zero utility; perfect utility (publish everything) gives zero privacy. Every privacy technique is really a chosen point on this trade-off curve.