CISA Issues Insider Threat Guidance for Critical Infrastructure Resilience

• •CISA's new guidance focuses on managing insider threats in critical infrastructure.
• •Insider threats can be malicious or due to unintentional user errors.
• •Collaboration across departments is essential for effective insider threat management.

On March 18, 2026, CISA released new guidance aimed at helping critical infrastructure operators and SLTT governments mitigate insider threats. The guidance identifies insider threats as both malicious acts and unintentional errors that can compromise sensitive data and systems. CISA emphasizes the importance of multidisciplinary insider threat management teams that include various departments such as IT, HR, and legal. The guidance highlights the need for organizations to foster a culture of trust to empower employees to report concerns. Recent incidents, such as a $400 million insider breach at Coinbase, illustrate the potential impact of insider threats. CISA's approach aims to reduce vulnerabilities and strengthen overall cyber resilience. However, the guidance lacks specific technological solutions to address these threats. The urgency for action is underscored by the ongoing challenges posed by insider threats in critical infrastructure sectors.