About this video
System services are simply software processes running in the background, and like all software, they can contain vulnerabilities. Each vulnerability represents a potential entry point that a threat actor can identify and exploit to gain unauthorized access or control over a machine. The more services running on a system, the larger the attack surface available to an attacker, which increases the overall risk exposure of that system.
One of the most effective and straightforward ways to reduce this risk is to disable any services that are not actively required for the system to perform its intended function. This practice, often called attack surface reduction, limits the number of potential weaknesses a threat actor can target. Regularly auditing running services and turning off unnecessary ones is a foundational step in system hardening and an essential habit for maintaining a defensible security posture.
What you'll learn
- Explain how disabling unused services reduces the attack surface of a system
What's covered
Securing Services
- Services Are Software
- Run on the machine
- Can have vulnerabilities
- Vulnerabilities Create Risk
- Create exploitable holes
- Allow threat agent access
- Can compromise machine
- Reduce Attack Surface
- Disable unused services
- Fewer services, less exposure
Key terms
- Attack Surface
- The total set of points in a system where an unauthorized user can attempt to enter or extract data.
- Vulnerability
- A weakness in a system, application, or process that can be exploited by a threat actor.
- Threat Actor
- An individual or group responsible for a security incident or attack.
- Service
- A software process running on a system that provides functionality or resources, which may introduce vulnerabilities if left enabled and unused.
Topics
System Hardening
Attack Surface
Unused Services
Vulnerability Management
Operating Systems
Cybersecurity
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