Logging In, Leaking Out: The Privacy Cost Hidden Inside Your Security Layer
Multi-factor authentication is widely promoted as a cornerstone of digital security, but few users realize that the very systems designed to protect their accounts are simultaneously profiling their behavior. From device fingerprints to login timestamps, the data generated each time you verify your identity feeds a parallel surveillance architecture. This article examines what platforms learn from your authentication habits — and whether the security benefit justifies the privacy cost.