This cheat sheet provides a comprehensive approach to securing DevOps environments across coding, infrastructure, and operations. It begins with secure coding practices such as strict input validation to prevent injection attacks and avoiding hardcoded secrets by using secure storage solutions and automated scanning in CI/CD pipelines. It then emphasizes infrastructure security through immutable infrastructure, infrastructure-as-code, and network segmentation to reduce configuration drift and limit lateral movement. The guide also promotes a zero-trust architecture with least-privilege access, MFA, and secure remote access controls. Finally, it highlights the importance of real-time monitoring, structured incident response, and continuous feedback loops to improve security over time. The k

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