Cybersecurity

Cyber Threat Intelligence, Alerts and Reports

As part of the AHA’s commitment to helping hospitals and health systems prepare for and prevent cyber threats, we have gathered the latest government cyber threat intelligence and alerts and Health Information Sharing and Analysis Center (H-ISAC) reports.

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Cybersecurity & Risk Advisory

Learn how AHA can help hospitals and health systems prepare for and mitigate cyber threats through the expertise of John Riggi, AHA’s National Advisor for Cybersecurity and Risk.

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H-ISAC TLP White: Daily Cyber Headlines - October 29, 2025.
A daily ransomware tracker at TLP:GREEN to increase awareness of the ransomware threat.
A daily ransomware tracker at TLP:GREEN to increase awareness of the ransomware threat.
In part two of a recent blog, AHA National Advisor for Cybersecurity and Risk John Riggi and AHA Deputy National Advisor for Cybersecurity and Risk Scott Gee highlight three trends that shaped 2025’s health care cybersecurity risk landscape, focusing on third-party cyber risk, clinical continuity…
On October 24, 2025, QNAP issued a security advisory regarding a critical vulnerability, CVE-2025-55315, in the Microsoft ASP .NET Core component installed by and utilized within its NetBak PC Agent application.
H-ISAC TLP White: Daily Cyber Headlines for October 24, 2025
This week, Health-ISAC®'s Hacking Healthcare® provides an update on the continuing U.S. government shutdown and negotiations around reauthorization of the Cybersecurity Information Sharing Act of 2015 (“CISA 2015”).
On October 23, 2025, Microsoft issued an out-of-band (OOB) security update for a critical-severity Remote Code Execution (RCE) vulnerability, tracked as CVE-2025-59287.
A daily ransomware tracker at TLP:GREEN to increase awareness of the ransomware threat.
H-ISAC TLP White: Daily Cyber Headlines for - October 23, 2025