Network Security & Threat Models
Network security involves strategies and practices designed to protect computer networks from unauthorized access, misuse, or attacks. Threat models are frameworks used to identify, assess, and prioritize potential risks and vulnerabilities within a network. By understanding various threat models, organizations can anticipate possible attack vectors, implement appropriate defenses, and ensure the confidentiality, integrity, and availability of their data and resources against evolving cyber threats.
Network Security & Threat Models
Network security involves strategies and practices designed to protect computer networks from unauthorized access, misuse, or attacks. Threat models are frameworks used to identify, assess, and prioritize potential risks and vulnerabilities within a network. By understanding various threat models, organizations can anticipate possible attack vectors, implement appropriate defenses, and ensure the confidentiality, integrity, and availability of their data and resources against evolving cyber threats.
💡 Key Takeaways
- Understand the goal of network security: protect confidentiality, integrity, and availability of networks and data.
- Understand what threat models are and how they help identify, assess, and prioritize risks and vulnerabilities in a network.
- Be familiar with common threat-modeling methods (STRIDE, PASTA, OCTAVE) and when to use them.
- Know how to translate threat models into practical defenses and risk-based controls (access management, encryption, monitoring, segmentation).
❓ Frequently Asked Questions
What is network security?
Network security is the set of policies, controls, and technologies that protect networks and the data they carry from unauthorized access, misuse, or attacks. It includes firewalls, encryption, access controls, monitoring, and incident response.
What is a threat model?
A threat model is a structured approach to identifying, analyzing, and prioritizing potential threats and vulnerabilities in a network or system to guide protective measures.
What are common threat modeling frameworks?
Popular frameworks include STRIDE (Spoofing, Tampering, Repudiation, Information Disclosure, Denial of Service, Elevation of Privilege) and PASTA (Process for Attack Simulation and Threat Analysis); other options include NIST-based approaches and VAST.
What is the CIA triad and why is it important?
The CIA triad stands for Confidentiality, Integrity, and Availability. It defines core security objectives and helps determine which protections are needed to keep data safe and usable.