Despite the dramatic upswing in the frequency and severity of data breaches, little is known about their effects on online customers’ behavior. To this end, we measure individual-level activity changes for a website that suffered an extreme data breach, one for which widespread media attention...

Nowadays, most of our activities and personal details are recorded by one entity or another. These data are used for many applications that fundamentally enrich our lives, such as navigation systems, social networks, search engines, and health monitoring. On the darker side of data collection...