Digital identity attributes become publicly available and easy to access. Each person now leaves in cyberspace an increasingly amount of digital footprint when aggregated and unified, contributes to the definition of the subject’s digital identity. Visible or invisible, left consciously or not, this set of data can be collected from various sources. …
The value of digital identity increases as much as substantial quantity of digital identity attributes has been collected and aggregated. Many people search engines are evolving to better provide services by aggregating people digital identity attributes.
Quelle: Architecting User Centric Privacy-as-a-Set-of-Services Digital Identity-Related Privacy Framework.