Module 10 · Threat Modelling for Engineers (STRIDE/LINDDUN)

Manish Garg
Manish Garg Associate of (ISC)² · RingSafe
Apr 27, 2026
2 min read
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Last updated: April 29, 2026

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Why this module. Threat modelling has a reputation as a heavyweight, consultant-driven exercise. It doesn’t have to be. Done right, it’s a 90-minute workshop that produces a list of design-time security improvements worth more than 100 hours of post-deployment patching.

Why this module. Threat modelling has a reputation as a heavyweight, consultant-driven exercise. It doesn’t have to be. Done right, it’s a 90-minute workshop that produces a list of design-time security improvements worth more than 100 hours of post-deployment patching.

STRIDE in 60 seconds

Microsoft’s mnemonic for categories of threats:

  • Spoofing — impersonating someone
  • Tampering — modifying data
  • Repudiation — denying an action
  • Information disclosure — leaking data
  • Denial of service — making the system unavailable
  • Elevation of privilege — gaining unauthorised access

For each component / data flow in your design, ask: which of these apply?

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