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H-ISAC TLP Green Cyber Incidents: Observed Whaling Attack - September 19, 2025
Health-ISAC provides this information to increase situational awareness and encourage members to assess their level of risk to related or similar activity
H-ISAC TLP Green Daily Cyber Headlines - September 19, 2025
H-ISAC TLP Green Daily Cyber Headlines for September 19, 2025.
H-ISAC TLP Green Ransomware Data Leak Sites Report - September 19, 2025
A daily ransomware tracker at TLP:GREEN to increase awareness of the ransomware threat.
Phishing operation attacking at least 20 health care organizations disrupted by Microsoft
Microsoft Sept. 16 announced it had disrupted a growing phishing service that had targeted at least 20 U.S. health care organizations and seized 338 websites associated with cyber threat group RaccoonO365.
Monitoring and Mitigating Third-party Cyber Risks
Monitoring and mitigating hospital third-party cyber risks: third-party service providers, mission-critical technology and the digital supply chain.
H-ISAC TLP White Vulnerability Bulletins TLP White Critical Vulnerability in WatchGuard Firebox Firewalls (CVE-2025-9242)
On September 17, 2025, WatchGuard released a security advisory regarding a critical vulnerability, tracked as CVE-2025-9242.
H-ISAC TLP White Threat Bulletin SonicWall MySonicWall Cloud Backup Incident
SonicWall has disclosed a security incident in which threat actors gained unauthorized access to backup firewall preference files stored in its cloud service,
H-ISAC TLP White Threat Bulletin VoidProxy: A New and Evasive Phishing-as-a-Service Framework
On September 11, 2025, Okta discovered a sophisticated Phishing-as-a-Service framework named VoidProxy. Due to its evasive capabilities and modular design, it has emerged as a significant threat.
H-ISAC TLP Green Daily Cyber Headlines - September 18, 2025
H-ISAC TLP Green Daily Cyber Headlines - September 18, 2025
FBI Flash Report TLP Amber Consistent and Varied Targeting of FBI Public-Facing Networks between 1 July 2024 and 30 September 2024
The Federal Bureau of Investigation (FBI) is releasing this FLASH to disseminate indicators of compromise (IOCs) associated with malicious cyber activities targeting the FBI’s computer network between 1 July 2024 and 30 September 2024.