Best Buy needed an AppSec program capable of supporting its massive and complex digital ecosystem, which includes thousands of engineers, application teams, repositories, and microservices. With frequent releases and a mix of legacy and modern cloud‑native systems, maintaining security at scale was challenging. The variety of languages, frameworks, and continuous development activities created constant pressure on teams. To keep customer experiences secure while enabling rapid innovation, Best Buy built an AppSec approach that could match its size, diversity, and development velocity, ensuring security was integrated without slowing delivery.

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