STRIDE is a model used for developing threat models. The name is an abbreviation of spoofing, tampering, repudiation, information disclosure, denial of service and elevation of privilege.
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.