Communications & Cybersecurity ISAC
Fierce Competitors,but United in Cyber Defense
C2 ISAC harnesses the communications sector's unique visibility into adversary infrastructure to deliver actionable threat intelligence, enable collective defensive action, and strengthen resilience across every critical infrastructure sector.
About C2 ISAC
Structural advantage no other ISAC can claim
Communications infrastructure is the connective tissue of the entire critical infrastructure ecosystem. Adversary activity targeting a power grid, a financial institution, or a hospital network traverses the networks our members operate — giving C2 ISAC members a vantage point no other sector ISAC possesses.
Mission — Harness the communications sector's unique visibility into adversary infrastructure to deliver actionable threat intelligence, enable collective defensive action, and strengthen resilience across all critical infrastructure sectors.
Trust above velocity
Maintains threat intelligence sharing and handling.
Action over observation
Drives coordinated defensive action, not just shares.
Sector-wide accountability
Shared responsibility to all critical infrastructure.
Privacy & legal integrity
All sharing operates within applicable law.
8
Founding Members
5
Strategic Pillars
2026–29
Strategic Plan
Membership
A five-group membership architecture
Founding / Core
Eight founding U.S. carriers providing backbone and last-mile network elements, mobile signaling intelligence, and governance authority.
International Carrier Partners
Leading carriers across Five Eyes nations, Europe, and the Asia-Pacific region participating through bilateral information-sharing agreements.
Domestic Extended Network
Cable MSOs, satellite, fiber, regional wireless, and internet exchange association extending regional and non-terrestrial coverage.
Technology Affiliates
Hardware and semiconductor suppliers alongside hyperscale cloud providers, contributing firmware, supply chain, and cloud threat context.
Cross-Sector Associates
Peer critical infrastructure ISACs receiving (not contributing) cross-sector intelligence drawn from C2 ISAC's network-level visibility.
Strategic Pillars
Five pillars, one intelligence mission
Intelligence Collection
Aggregates network-derived threat-level visibility across domains and international carrier tiers into a shared threat intelligence platform.
Cross-Sector Intelligence Sharing
Concluding our vantage point into a formal baseline giving peer ISACs visibility into communications-layer threats against shared infrastructure.
Collective Defensive Action
Enabling members to take coordinated, sector-wide action against active threats, reducing dwell time and limiting adversary impact.
AI-Enabled Defense & Adversary AI Awareness
Aggregating network-derived threat-level visibility across domains and a threat domain requiring dedicated monitoring across member networks.
Software & Cyber Supply Chain Security
Coordinating visibility of the network equipment and managed services in the sector's cyber supply chain.
Events
North American Telecommunications CISO Summit
Inaugural C2 ISAC Summit
A two-day convening of the communications sector's cybersecurity leaders, international carrier partners, Technology Affiliates, and peer ISACs — opening with keynotes and threat briefings on Day 1 and working group roundtables and panels announcing C2 ISAC's strategic plan and membership framework.
November 11–12, 2026
Washington, DC
Date and location to be announced to members.
Membership Inquiry
Join C2 ISAC
Whether you're a founding-tier carrier, an international partner, or a technology affiliate, contact us to start the conversation.