On December 15, 2021, the U.S. Department of Homeland Security Cybersecurity & Infrastructure Security Agency (“CISA”) announced the publication of a warning for “critical infrastructure owners and operators to take immediate steps to strengthen their computer network defenses against potential malicious cyber attacks” before the upcoming holiday season. CISA’s warning emphasizes that “[s]ophisticated threat actors . . . have demonstrated capabilities to compromise networks and develop long-term persistence mechanisms” and have “demonstrated capability to leverage this access for targeted operations against critical infrastructure with potential to disrupt National Critical Functions.”
CISA’s warning includes recommended actions for executives and senior leaders, additional recommended actions for organizations with operational technology (“OT”) and industrial control systems (“ICS”), recommendations for organizations that have experienced a cybersecurity incident, and a list of resources that organizations confronting cyber threats and evaluating cybersecurity best practices may find helpful.
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