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Advantages of threat modeling

When performed correctly, threat modeling can provide a clear line of sight across a software project, helping to justify security efforts. The threat modeling process helps an organization document knowable security threats to an application and make rational decisions about how to address them. Otherwise, decision-makers could act rashly based on scant or no supporting evidence.

Overall, a well-documented threat model provides assurances that are useful in explaining and defending the security posture of an application or computer system. And when the development organization is serious about security, threat modeling is the most effective way to do the following:

• Detect problems early in the software development life cycle (SDLC)—even before coding begins.
• Spot design flaws that traditional testing methods and code reviews may overlook.
• Evaluate new forms of attack that you might not otherwise consider.
• Maximize testing budgets by helping target testing and code review.
• Identify security requirements.
• Remediate problems before software release and prevent costly recoding post-deployment.
• Think about threats beyond standard attacks to the security issues unique to your application.
• Keep frameworks ahead of the internal and external attackers relevant to your applications.
• Highlight assets, threat agents, and controls to deduce components that attackers will target.
• Model the location of threat agents, motivations, skills, and capabilities to locate potential attackers in relation to the system architecture.