Threat Modeling for Web Applications
Threat Modeling for Web Applications Threat modeling helps teams find weaknesses before they ship. For web apps, it means looking at data flows, user roles, third‑party services, and the deployment environment. The goal is to reduce risk without slowing down development. Key steps to start Define security goals: What must be protected? User data, payment details, admin access. Map the system: Draw a simple diagram of the client, API, database, cache, and external services. Identify threats using STRIDE: Spoofing, Tampering, Repudiation, Information disclosure, Denial of service, Elevation of privilege. Prioritize risks: Consider impact and likelihood; focus on the items that could cause the biggest harm. Plan mitigations: Add input validation, strong authentication, proper session handling, logging, and monitoring. Review and repeat: Revisit the model when new features arrive. Example: A login flow Consider a login form that accepts a username and password. Threats include broken authentication, credential stuffing, and session hijacking. Mitigations include: ...