Which agreement defines the technical interconnections between two entities?

The Interconnection Security Agreement (ISA) is specifically designed to document the technical interconnections and the security requirements between two entities. This agreement outlines the protocols, methods, and security measures to be adhered to by both parties to ensure the integrity, confidentiality, and availability of the data exchanged. It serves as a formal agreement that establishes how the security mechanisms will be implemented, ensuring they align with both entities' security policies and regulatory requirements. The ISA is essential for managing risks and demonstrating due diligence in maintaining secure interconnections, especially in environments where sensitive data is shared.

In contrast, other agreements mentioned have different purposes. A Business Impact Analysis (BIA) focuses on identifying the effects of an interruption to business operations and does not specifically address technical interconnections. Interoperability Agreements primarily deal with the ability of different systems and organizations to work together, but they might not detail technical security measures as thoroughly as an ISA. A Master Service Agreement (MSA) outlines the terms and conditions for services provided between two entities but does not specialize in the technical aspects of interconnection and security.