Summary
This follows a proactive threat hunt engagement conducted at a U.S. critical infrastructure facility. During this engagement, CISA and USCG did not find evidence of malicious cyber activity or actor presence on the organization’s network but did identify several cybersecurity risks. CISA and USCG are sharing their findings and associated mitigations to assist other critical infrastructure organizations identify potential similar issues and take proactive measures to improve their cybersecurity posture. The mitigations include best practices such as not storing passwords or credentials in plaintext, avoiding sharing local administrator account credentials, and implementing comprehensive logging. For more detailed mitigations addressing the identified cybersecurity risks, review joint Cybersecurity Advisory: CISA and USCG Identify Areas for Cyber Hygiene Improvement After Conducting Proactive Threat Hunt at US Critical Infrastructure Organization .