Towards Effective Differential Privacy Communication for Users' Data Sharing Decision and Comprehension

Understand

Differential privacy protects an individual's privacy by perturbing data on an aggregated level (DP) or individual level (LDP).

• We report four online human-subject experiments investigating the effects of using different approaches to communicate differential privacy techniques to laypersons in a health app data collection setting.
• Experiments 1 and 2 investigated participants' data disclosure decisions for low-sensitive and high-sensitive personal information when given different DP or LDP descriptions.
• Experiments 3 and 4 uncovered reasons behind participants' data sharing decisions, and examined participants' subjective and objective comprehensions of these DP or LDP descriptions.