Answer:
The company effectively implemented patch management.
Step-by-step explanation:
From the question we are informed about a scenario whereby A major software company finds that code has been executed on an infected machine in its operating system. As a result, the company begins working to manage the risk and eliminates the vulnerability 12 days later. In this case The company effectively implemented patch management. Patch management can be regarded as process involving distribution and application of updates to software. The patches helps in error correction i.e the vulnerabilities in the software. After the release of software, patch can be used to fix any vulnerability found. A patch can be regarded as code that are used in fixing vulnerabilities