Container security is the process of using tools and setting policies to ensure that containers are safe from threats and operate in a secure environment while also protecting the organization’s infrastructure from attack.
Container security is important for the same reason that all network and application security is important — containers compromised by a malicious third party could not only corrupt the processes and tasks that the container is undertaking, it could also open the door for a cascade of additional attacks against the organization’s network.
Container security is naturally a complicated subject because of the general complexity of the container environment. A team’s container security strategy must secure containers and the code running within them, container dependencies and libraries, container deployment, application development, DevOps and orchestration platforms — and the broader infrastructure upon which all of these technologies operate.
In order to protect the enterprise, the security of containers must be a key part of the development process, largely because container security is considerably more difficult to implement after you’ve deployed your container environment. In this article, we’ll dig deeper into the best practices for securing containers and containerized applications, and discuss the challenges of securing the various container platforms that are popular in the market.