Attack Vectors and Attack Surfaces
In the world of physical security, you don’t just worry about "theft"; you worry about the unlocked window, the side door with the faulty latch, or the delivery driver who isn't who they say they are. In cybersecurity, these specific pathways are our Attack Vectors.
An attack vector is simply the "how" and the "where" an adversary gains unauthorized access to your network. While the Attack Surface is the sum total of your exposure, the Vectors are the individual paths leading into the heart of the system.
The Common Vulnerabilities (The "Leaky Pipes")
Identifying attack vectors is the first step in hardening your infrastructure. Here are the primary culprits we see in the field:
Social Engineering & Phishing: This is the "human exploit." Instead of hacking the code, they hack the person. Whether it’s a credential-stealing link or a deceptive PDF attachment, this remains the #1 entry point for ransomware.
Account Takeovers (ATO): This happens when identity management fails. Stolen session cookies, brute-forced passwords, or credentials bought on the dark web allow attackers to walk through the front door as a "trusted" user.
The Insider Threat: Whether malicious (the disgruntled admin) or accidental (the dev who leaves an S3 bucket open), the threat from within is often the hardest to mitigate because the "vector" is already inside the perimeter.
Vulnerability Exploits (The Unpatched Flaw): Software isn't perfect. Bugs in code are like faulty locks. If you’re running unpatched "Zero-Day" vulnerabilities, you’ve essentially left a master key under the welcome mat.
Infrastructure Misconfigurations: Open ports are the digital equivalent of leaving the garage door open. If a port isn't serving a specific business function, it should be closed. Period.
Browser & Application Compromise: Because we live in a "Cloud-First" world, the browser is the new endpoint. Malicious scripts (XSS) or "poisoned" third-party apps can turn a standard web session into a bridge for malware.
Hardening the Perimeter: Practical Mitigation
You cannot eliminate every vector—the only 100% secure system is one that is turned off and buried in concrete. However, you can make the "cost of entry" too high for most attackers.
Identity as the New Perimeter: Use MFA and session monitoring to kill the effectiveness of stolen credentials.
Aggressive Patching: Automate your updates. A vulnerability is only a vector if it remains unpatched.
Browser Isolation: Treat the public internet as "untrusted" by default. Executing code in a containerized environment keeps the mess off your local network.
SASE (Secure Access Service Edge): As we move away from the traditional office, SASE integrates networking and security into a single cloud-native stack, closing the gap between the user and the app.
The Bottom Line
Think of your security posture like a building's blueprint. You can't remove every door, but you can ensure every door has a deadbolt, a camera, and a guard. By systematically identifying and closing off attack vectors, you shrink your Attack Surface and force the adversary to look for an easier target elsewhere.



