SafeStack Zero Trust in Application Security is an online training course designed for application development teams and architects. The course addresses the paradigm shift from centrally managed applications and trusted zones to cloud-centric technology environments. The training takes approximately 1 hour to complete and covers Zero Trust architecture fundamentals, maturity models, and implementation strategies within application development contexts. Upon completion, participants receive a Security in Practice: Zero Trust certification through Credly. The course is structured into multiple modules covering introduction to Zero Trust concepts, the Zero Trust maturity model, basic tenets of Zero Trust, maturity assessment methods, and initial steps toward Zero Trust architecture implementation. The curriculum focuses on helping development teams make informed decisions about security architecture for their solutions and organizations. The training is categorized under the Architect role and addresses the increasing mandate for Zero Trust approaches by governments and clients globally. The course emphasizes practical application of Zero Trust principles within software development and architecture practices.