STRIDE (Spoofing, Tampering, Repudiation, Information disclosure, Denial of service, Elevation of privilege) is a threat model for identifying computer security threats. STRIDE modelling anticipates threats to the target system and builds upon an overarching model of the system often via analysis of data-flow diagrams, which may include a breakdown into processes, data stores, data flows, and trust boundaries.

Developed by Praerit Garg and Loren Kohnfelder at Microsoft, it provides a mnemonic for security threats in six categories. Each STRIDE category corresponds to a core principle of information security: Authenticity, Integrity, Non-repudiability, Confidentiality, Availability and Authorization.

See also

  • Attack tree – another approach to security threat modeling, stemming from dependency analysis
  • DREAD – a classification system for security threats
  • OWASP – an organization devoted to improving web application security through education
  • CIA also known as AIC – another mnemonic for a security model to build security in IT systems

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