Scaling infrastructure inevitably involves scaling identities, such as API keys and service accounts, which require secure management to prevent security risks. As systems grow, the proliferation of identities can lead to credential sprawl, making it challenging to track and manage them effectively. Doppler addresses this issue by centralizing secrets management across environments, automating rotation, integrating with deployment pipelines, and providing visibility into credential usage. This helps maintain security and organization as infrastructure expands. The text highlights the potential pitfalls of improper identity management, such as overprovisioning, secret reuse, and credential dependency risks, and emphasizes the importance of using robust access management systems. Doppler's developer-friendly solutions, which include automated secret rotation and tight integration with CI/CD tooling, are designed to support growing teams by simplifying identity scaling and ensuring secure practices.