DevSecOps and cloud services are driving container adoption in software. As container architectures get complex, they're increasingly exploited. This talk aims to clarify containerization and infrastructure-as-code (IaC) for beginners. We'll cover container technologies, key terms, their value, popularity, challenges, and security issues. We'll discuss common threats, vulnerabilities, attack vectors, and provide real-world attack examples. We'll reference standards and resources like OWASP Docker Top 10, Container Security Verification Standard, NIST Application Container Security guide, and CIS Benchmarks. Finally, we'll provide guidelines and best practices for securing containers.