PETs Adoption Guide

What are PETs?

A privacy enhancing technology is any technical method that protects the privacy or confidentiality of sensitive information. This broad definition covers a range of technologies, from relatively simple ad-blocking browser extensions to the Tor network for anonymous communication. We are interested in a narrower set of technologies, that we divide into two categories: traditional and emerging PETs.

Traditional PETs are well-established privacy techniques, such as encryption schemes that secure information in transit and at rest, and de-identification techniques such as tokenization and k-anonymity.

Emerging PETs are a group of technologies that have begun to provide novel solutions to privacy challenges in modern data-driven systems. There is no fixed definition of what PETs fall into this group, but here we primarily consider five technologies: homomorphic encryption, trusted execution environments, secure multi-party computation, differential privacy, and systems for federated data processing.

Examples of traditional PETs

Examples of emerging PETs