CCR provides up-to-date images to users that are used to launch instances. However, it is the responsibility of the cloud account owner to ensure that his/her instances remain up-to-date and free of security risks. Below are links to external sources of information about applying updates and security patches for various operating systems offered in the CCR cloud:
If you have any questions, please submit a ticket to CCR Help
Related topic: Security Groups - Controlling access to your instance
NOTE: CCR and UBIT reserve the right to scan all cloud instances for security vulnerabilities. If a major compromise were to be detected, CCR would shut down the instance(s) and contact the account owner.