The main security risks of using Docker are: Unrestricted traffic. Some versions of Docker allow all network traffic on the same host by default. This can expose data to the wrong containers. Vulnerable and malicious container images. As the Docker Hub is open to everyone, so untrustworthy publishers could publish unstable or corrupted versions of common images in the Docker Hub registry. Unrestricted access. It’s possible for attackers to access numerous containers once they’ve infiltrated the host via the system file directory. Vulnerable host kernel. The kernel is exposed to the host and all containers, so if a container causes a security problem in a vulnerable kernel, it could compromise the entire host. Container breakouts. This takes place if malicious actors access the host or other containers from a compromised container. If a process breaks out of a container, it maintains container host privileges. Furthermore, a single compromised container can lead to other containers being compromised. Compliance. This can be challenging to monitor and enforce, owing to the fast-moving nature of container environments.