Which measure helps control access to shared data among agencies?

Which measure helps control access to shared data among agencies?

• A. Encryption
• B. Audit trails
• C. Standardized data formats
• D. Access controls

Answer: (D)

Access controls are the mechanism that restricts who can view or manipulate shared data across agencies. They authenticate users and authorize actions based on roles or policies, enforcing the least-privilege principle so each agency or user only accesses what they truly need. In interagency sharing, this means defining permissions for each role, implementing RBAC or ABAC, and continually enforcing these rules to maintain proper scoping and accountability. Encryption protects data in storage or transit but doesn’t govern who can access it once data is accessible; audit trails record what happened but don’t prevent access; standardized data formats aid sharing but don’t limit access. So, controlling access through robust access controls best ensures secure, appropriate data sharing among agencies.

Access controls are the mechanism that restricts who can view or manipulate shared data across agencies. They authenticate users and authorize actions based on roles or policies, enforcing the least-privilege principle so each agency or user only accesses what they truly need. In interagency sharing, this means defining permissions for each role, implementing RBAC or ABAC, and continually enforcing these rules to maintain proper scoping and accountability. Encryption protects data in storage or transit but doesn’t govern who can access it once data is accessible; audit trails record what happened but don’t prevent access; standardized data formats aid sharing but don’t limit access. So, controlling access through robust access controls best ensures secure, appropriate data sharing among agencies.