May 24, 2023 WaterISAC Cyber Threat Briefing

CISA ICS Vulnerability Advisories and Alerts, Updates, and Bulletins – May 25, 2023

Ransomware Resilience – Updated #StopRansomware Guide Now Available

Ransomware Trend Awareness – New Vulnerabilities Utilized in Q1 2023 Ransomware Attacks

Threat Awareness – Popular Secure Email Gateways Being Bypassed by SuperMailer Demonstrates Continued Evolution and Prolificacy of Credential Phishing

Threat Awareness – BEC Campaigns Now Utilizing Residential IP Addresses to Increase Legitimacy

Network Defense – Indicators of Compromise from a Ransomware Attack on a U.S. Entity

Vulnerability Awareness – Cisco Releases Security Advisory for Small Business Series Switches

CISA ICS Vulnerability Advisories and Alerts, Updates, and Bulletins – May 23, 2023

ICS Network Defense – Cyber Criminals Researching Tactics to Compromise ICS/OT Systems

Security Awareness – Social Engineering Techniques Being Used to Exploit Microsoft Teams

Joint Cybersecurity Advisory – #StopRansomware: BianLian Ransomware Group