Episode 94 — BGP Hijacking: what it is and what mitigations look like
BGP hijacking is included in CloudNetX because it represents a high-impact routing threat where traffic can be misdirected or intercepted due to false route announcements, and scenario questions often test recognition and appropriate mitigations. This episode defines BGP route announcements as the mechanism by which networks advertise reachability information, and it defines hijacking as the unauthorized or incorrect advertisement of prefixes that causes traffic to be routed through an unintended network. The first paragraph focuses on the practical impact: users may experience redirection, increased latency, or service unavailability, and organizations may lose traffic confidentiality if flows traverse malicious or misconfigured intermediaries. It explains why this is possible in interdomain routing and why control and validation are central, because BGP is designed around policy and trust relationships rather than intrinsic verification.
