Which model is an open-source alternative to STRIDE offered by Octotrike?

The Trike model is an open-source alternative to STRIDE developed by Octotrike. It focuses on threat modeling and provides a framework for identifying and analyzing security threats in a systematic way. The Trike model emphasizes the importance of understanding the risks and impacts to an organization and tailoring the threat model to meet specific requirements. It incorporates concepts from risk management and security concepts, making it a comprehensive approach to evaluating potential threats in a system.

In contrast, the other models mentioned, such as SAFe, Agile, and V-Model, serve different purposes. SAFe (Scaled Agile Framework) is a framework for scaling agile practices within large organizations, while the Agile model focuses on iterative development. The V-Model is a software development process that emphasizes validation and verification but does not specifically deal with threat modeling like the Trike model. This distinction highlights why the Trike model is the correct answer in this context.