BGP Hijacking: How Attackers Reroute the Internet Itself

Thu, 16 Apr 2026 00:00:00 +0000

The internet’s routing infrastructure — the system that determines how packets travel from one network to another — was not designed with security as a primary consideration. BGP (Border Gateway Protocol), the protocol that glues together the approximately 75,000 Autonomous Systems (ASes) that constitute the global internet, operates fundamentally on trust. When an AS announces that it is the best path to a given IP prefix, neighboring ASes generally believe it. This design decision, reasonable in 1989, enables a class of attacks with global impact.

DNS Hijacking: Redirecting Your Traffic Without You Knowing

Mon, 13 Apr 2026 00:00:00 +0000

The Domain Name System is the phone book of the internet. When your browser resolves bank.example.com, it trusts the answer it receives. DNS hijacking exploits that trust — an attacker who controls the DNS resolution path can silently redirect your traffic to infrastructure they control, intercept credentials, and serve malware, all while your browser displays a lock icon and a familiar URL.

This post dissects every major DNS hijacking vector, walks through real APT campaigns that used these techniques at scale, provides detection logic you can deploy today, and covers defenses that meaningfully reduce your attack surface.

Hijacking on it-learn.io | IT, Networking & Cybersecurity Blog

BGP Hijacking: How Attackers Reroute the Internet Itself

DNS Hijacking: Redirecting Your Traffic Without You Knowing