Final answer:
Access to a backup data set should be tightly controlled to protect sensitive information, ensure data integrity, and maintain data availability.
Step-by-step explanation:
Access to a backup data set should be tightly controlled for several reasons. Firstly, the data in a backup set is often sensitive and confidential, such as personal, financial, or medical information. By tightly controlling access, organizations can reduce the risk of this information falling into the wrong hands and prevent identity theft or other fraudulent activities.
Secondly, tightly controlling access to a backup data set helps to ensure its integrity. By limiting who can access and modify the data, organizations can prevent unauthorized changes, accidental deletions, or other actions that could compromise the integrity of the backup.
Lastly, controlling access to a backup data set also helps in maintaining its availability. By granting access only to authorized individuals or systems, organizations can prevent unauthorized access or malicious attacks that could result in data loss or disruption to operations.