How to Detect Man-in-the-Middle Attacks: Indicators, Methods, and Detection Gaps
Most MITM attacks don’t announce themselves. No alerts fire, no certificates visibly break, and no users report anything unusual. By the time the interception is discovered, credentials or session tokens are already in attacker hands. Knowing how to detect man-in-the-middle attacks requires looking across multiple layers: network traffic, DNS resolution, TLS certificate integrity, and session behavior.