Even with anonymized data, researchers warned of "linkage attacks," where hackers or institutions could cross-reference anonymous app data with other public information to re-identify individuals.
A primary fear was "techno-governance"—the idea that governments would use pandemic-era tracking to build permanent surveillance infrastructures. Privacy Concerns Hindering Digital Contact Tracing
Digital contact tracing (DCT) was touted as a high-tech savior during the COVID-19 pandemic, promising to "flatten the curve" by automating the laborious process of manual tracing. However, the tool largely failed to reach its potential because it clashed with one of the public's most sensitive values: . Even with anonymized data, researchers warned of "linkage
Users expressed deep distrust toward private tech companies, fearing their sensitive health and location data would be sold or shared for commercial purposes. However, the tool largely failed to reach its
Privacy and Security in Digital Health Contact-Tracing - MDPI
Public hesitation wasn't just about a general dislike of tracking; it was rooted in specific, documented risks:
The very nature of a notification—telling you that you were near someone infected—can inadvertently reveal that person's identity in small social or professional circles.