You have recently experienced a security incident with one of your servers. After some research, you determine that hotfix #568994 that has recently been released would have protected the server. Which of the following recommendations should you follow when applying the hotfix?
Apply the hotfix immediately to all servers.
Apply the hotfix immediately to the server? apply the hotfix to other devices only as the security threat manifests itself.
Test the hotfix, then apply it to the server that had the problem.
Test the hotfix, then apply it to all servers.