Microsoft Exchange Server Vulnerabilities: Information and Mitigation Resources – Updated April 20, 2021

OT Cybersecurity – ICS Unicorns are an Endangered Species

Ryuk Ransomware Operation Updates Hacking Technique

Organized Crime Groups Will Exploit New Vulnerabilities and Opportunities to Target Critical Infrastructure, according to Europol

CISA Fire as a Weapon Action Guide

Al Qa’ida after the Leadership of Ayman al Zawahiri

U.S. West Prepares for Possible First Official Water Shortage Declaration

U.S. Cities Prepare for Potential Civil Unrest Ahead of Derek Chauvin Trial Verdict

Security & Resilience Update – U.S. and Canadian Threat Assessments; U.S. Attributes SolarWinds to Russia; & More

Threat Actors Targeting Cybersecurity Researchers

OT Vulnerability Management – Siemens Releases Multiple Advisories for NAME:WRECK Vulnerability

Texas Energy Blackouts Stress Water and Wastewater System Resilience Plans