Privacy Lect5 Flashcards
What is the comparison for datasets in PII (personable identifiable information)?
1 anonym and 1 known
What is the goal in linking external information for PII?
Re-identify entities
How to prevent PII from being leaked?
Use encrypted email, HTTPS
GDPR (General data protection regulation) requires?
Transparency in profiling customers
Privacy contradictory to Blockchain
The right to be forgotten
Data anonymization example
Netflix case with iMBD
Machine learning example
based on what your bought, supermarket can guess if and when you’re pregnant
How to protect data privacy in data sharing?
Privacy Enhancing Technology
Types of PET (2)
K-Anonymity and Differential Privacy
What is K-Anonymity?
Model for releases of microdata that seek to prevent record re-identification by hiding each original record within a group of k-indistinguishable anonymized records
Dataset said to be k-anonymous if?
Combination of values appear for at least k different records.
2 factos in k-anonymity
I-diversity and t-closeness
How to make dataset k anonymous?
Use opensource tool ARX
K-anonym doesn’t provide privacy if:
Sensitive values lack diversity, and attacker has background knowledge.
What is differential privacy?
Limit knowledge that users obtain from query records
How to do differential privacy?
Add noise
Differential privacy protects against?
Differencing attacks, linkage attacks and reconstruction attacks
Differential privacy doesn’t protect against?
Only protect private information and not general information
What does Federated Learning in ML enable?
A model to be trained by multiple machines, where training and data reside in a local machine. Results are encrypted and shared with collaborating machiens.
What is Synthetic Data in ML?
Data which is mimicked to include properties similar to real data collected from actual business transactions.
What is transfer learning in Machine learning?
Allow pre-trained models to be used by others for developing a new model in a similar field.
Usage of Zero-Knowledge Proof
E-voting, E-auction, privacy-preserving blockchain, nuclear disarmament
