From Cyber Defense to Operational Resilience: Why CISA Is Prioritizing Isolation and Recovery
CISA's recently launched “CI Fortify” initiative places particular emphasis on two concepts — isolation and recovery. The framework reflects growing concern in Washington that future cyber campaigns targeting critical infrastructure will be designed not simply to steal information, but to undermine the operational continuity of energy systems, communications networks, transportation, water utilities, and other essential sectors during periods of geopolitical confrontation.
According to CISA, critical infrastructure operators must be capable of sustaining operations even in scenarios where external connectivity becomes unreliable or unavailable. The guidance assumes that internet access, cloud services, and third-party providers may be disrupted simultaneously, while adversaries may already have established persistent access inside operational environments. In such circumstances, organizations cannot depend solely on perimeter defense or centralized digital ecosystems. They must be prepared to operate independently under degraded conditions.
This reflects a broader transformation in the threat landscape. Over the past several years, U.S. officials have repeatedly warned about state-sponsored cyber groups conducting long-term pre-positioning activities inside critical infrastructure networks. Campaigns linked to groups such as Volt Typhoon and Salt Typhoon have reinforced concerns that attackers are increasingly targeting operational technology (OT) environments rather than conventional enterprise IT systems. The objective is no longer limited to espionage; it is increasingly tied to the potential disruption of physical infrastructure and public services.
Against this backdrop, CISA's focus on “isolation” should not be interpreted as a simple recommendation to disconnect systems from the internet. Instead, the concept refers to the ability of organizations to preserve core operational functions even when separated from external networks or digital dependencies. This requires infrastructure operators to rethink longstanding assumptions about connectivity, trust relationships, and automation.
For many organizations, industrial environments were historically designed around availability and efficiency rather than resilience under hostile conditions. Operational networks often evolved with extensive third-party integration, remote access dependencies, and limited segmentation between IT and OT systems. CISA's guidance suggests that this model is no longer sustainable in an era of persistent geopolitical cyber competition.