H-ISAC TLP Green: Daily Cyber Headlines - December 18, 2025

Today’s Headlines:  

Leading Story

• Cisco Confirms Active Exploitation of Secure Email Gateway and Cisco Secure Email and Web Manager

Data Breaches & Data Leaks 

• Significant Data Breaches at Expert MRI and McElroy & Associates Impact PHI of Thousands

Cyber Crimes & Incidents

• Cellik RAT Abuses Google Play Apps to Enable Remote Control on Android Devices

Vulnerabilities & Exploits  

• Gladinet CentreStack and Triofox Vulnerability Exploited in Attacks
• Microsoft Engages IT Administrators to Address Windows IIS and MSMQ Failures

Trends & Reports

• New Research Reveals 90% of Parked Domains Now Deliver Malware, Scams, and Phishing Attacks
• Amazon Warns of Russian Cyber Threat Campaign Targeting Critical Infrastructure
• Traditional MFA Methods Create Hidden Expenses and Operational Challenges in Enterprise Environments

Privacy, Legal & Regulatory

• Minnesota Man Admits Involvement in Betting Platform Breach

Upcoming Health-ISAC Events

• Global Monthly Threat Brief
  • Americas – January 27, 2026, 12:00-01:00 PM ET
  • European – January 28, 2026, 03:00-04:00 PM CET

View the detailed report below.