Container Security: Why “Running a Container” Is Not Enough

📰 Medium · Cybersecurity

Learn why running a container is not enough for security and how to implement a comprehensive container security strategy

intermediate Published 23 Jul 2026

Action Steps

Implement multi-stage builds as a security practice to reduce attack surface
Use minimal container images to minimize vulnerabilities
Run containers as non-root to reduce privilege escalation risks
Configure Linux security mechanisms such as namespaces, cgroups, and Seccomp to restrict container access
Use network security measures to restrict container communication

Who Needs to Know This

DevOps and security teams can benefit from this article to improve container security and protect against potential threats

Key Insight

💡 A comprehensive container security strategy involves securing container images, implementing Linux security mechanisms, and restricting network communication

Key Takeaways

Learn why running a container is not enough for security and how to implement a comprehensive container security strategy

Full Article

Title: Container Security: Why “Running a Container” Is Not Enough

URL Source: https://medium.com/@marek_62375/container-security-why-running-a-container-is-not-enough-0dc0c095b2e6?source=rss------cybersecurity-5

Published Time: 2026-07-23T17:52:41Z

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1. [Modern Docker security from image building to runtime protection](https://medium.com/?source=post_page-----0dc0c095b2e6---------------------------------------#3653 "Modern Docker security from image building to runtime protection")
2. [The Container Security Model](https://medium.com/?source=post_page-----0dc0c095b2e6---------------------------------------#3313 "The Container Security Model")
3. [1. Secure Container Images](https://medium.com/?source=post_page-----0dc0c095b2e6---------------------------------------#6d5b "1. Secure Container Images")
4. [Minimal Images Reduce Attack Surface](https://medium.com/?source=post_page-----0dc0c095b2e6---------------------------------------#af58 "Minimal Images Reduce Attack Surface")
5. [Multi-stage Builds as a Security Practice](https://medium.com/?source=post_page-----0dc0c095b2e6---------------------------------------#feb1 "Multi-stage Builds as a Security Practice")
6. [Never Store Secrets Inside Images](https://medium.com/?source=post_page-----0dc0c095b2e6---------------------------------------#f031 "Never Store Secrets Inside Images")
7. [Run Containers as Non-root](https://medium.com/?source=post_page-----0dc0c095b2e6---------------------------------------#47b3 "Run Containers as Non-root")
8. [Linux Security Mechanisms Behind Containers](https://medium.com/?source=post_page-----0dc0c095b2e6---------------------------------------#e3e9 "Linux Security Mechanisms Behind Containers")
9. [Namespaces](https://medium.com/?source=post_page-----0dc0c095b2e6---------------------------------------#9fa6 "Namespaces")
10. [cgroups](https://medium.com/?source=post_page-----0dc0c095b2e6---------------------------------------#9507 "cgroups")
11. [Seccomp](https://medium.com/?source=post_page-----0dc0c095b2e6---------------------------------------#c87f "Seccomp")
12. [AppArmor and SELinux](https://medium.com/?source=post_page-----0dc0c095b2e6---------------------------------------#9785 "AppArmor and SELinux")
13. [Rootless Containers](https://medium.com/?source=post_page-----0dc0c095b2e6---------------------------------------#dd2a "Rootless Containers")
14. [Network Security](https://medium.com/?source=post_page-----0dc0c095b2e6---------------------------------------#d35a "Network Security")
15. [Container Image Security Pipeline](https://medium.com/?source=post_page-----0dc0c095b2e6---------------------------------------#f469 "C

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Container Security: Why “Running a Container” Is Not Enough

Key Takeaways

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