You can preserve the integrity of the SAP Agent catalog (_backint.xml) in the following ways:
Only users in the Administrators or Backup Operators groups can access the SAP Agent catalog (_backint.xml). As an administrator, you can give other users permission to access _backint.xml. However, you should not revoke the default permission that is given to the Administrators and Backup Operators groups.
You can include a backup of _backint.xml along with your normal backups by setting the parameter Backup Catalog to On in biparam.ini. Catalog backups are recommended at least monthly, but backing up the catalog more frequently provides additional safeguards if the catalog becomes corrupted.