Episode 36: Introduction to Threat Vectors and Attack Surfaces (Domain 2)

Cybersecurity is not just about knowing your enemy—it’s about understanding the paths they take to reach you. This episode introduces threat vectors and attack surfaces, two essential concepts for identifying exposure and hardening defenses. A threat vector is the specific method or route used by an attacker to exploit a vulnerability, such as phishing emails, unpatched software, or rogue USB devices. An attack surface refers to the total number of points in a system where an attacker can try to enter or extract data, including open ports, endpoints, applications, and third-party services. We explain how modern environments—especially those with cloud, remote work, and BYOD models—expand attack surfaces dramatically, making threat vector analysis and minimization more important than ever. By reducing your attack surface and understanding how vectors evolve, you improve both detection and prevention. This episode lays the groundwork for deeper dives into social engineering, software flaws, and system misconfigurations in later episodes.