Which network is used for sharing operational security information?

The correct answer is ISN, which stands for Information Sharing and Analysis Network. The ISN is specifically designed for sharing sensitive operational security information among industry participants. It enables members to communicate about potential threats, vulnerabilities, and incidents that could impact the electric power sector’s reliability and security. The network facilitates timely and effective information exchange, which is crucial for preemptively addressing cyber threats or physical security risks to the electric grid.

The other options serve different purposes or are not primarily focused on operational security information sharing. The NERC Hotline, for example, is typically used for compliance inquiries and reporting issues but is not the primary channel for sharing operational security information within the industry. FERC Telecommunications INC. relates more to telecommunications and does not focus on the operational security aspect. OSL, while associated with operational security, is not primarily known for the overarching sharing of information like the ISN does. Hence, ISN stands out as the dedicated network for operational security information sharing in the electric power sector.