Healthcare Threat Intelligence Guide

Stay ahead of cyber threats targeting healthcare with real-time threat intelligence from CISA, HHS, and industry sources.

Threat FeedsCISA AlertsHHS AdvisoriesIOC MonitoringProactive Defense

What Is Threat Intelligence?

Threat intelligence is evidence-based knowledge about existing or emerging threats to your organization. For healthcare practices, it means understanding which threat actors are targeting healthcare, what tactics they use, which vulnerabilities they exploit, and what you can do to defend against them before an attack happens.

Why Healthcare Needs Threat Intelligence

Healthcare faces a unique threat landscape:

Targeted by nation-state actors (APT groups targeting medical research and patient data)
#1 ransomware target (more than financial services, government, or education)
Critical infrastructure designation means disruptions can endanger lives
Regulatory obligations (HIPAA requires you to address known threats)
Legacy systems make healthcare an easier target than other industries

Without threat intelligence, you're defending against yesterday's threats. With it, you can proactively prepare for what's coming.

Key Threat Intelligence Sources

CISA (Cybersecurity & Infrastructure Security Agency)

What they provide: Advisories, alerts, and bulletins about vulnerabilities and threats affecting critical infrastructure including healthcare. How to use it: Subscribe to CISA alerts at cisa.gov/subscribe. Review advisories weekly and patch affected systems. Key resource: Known Exploited Vulnerabilities (KEV) catalog — if your systems are on this list, patch immediately.

HHS Health Sector Cybersecurity Coordination Center (HC3)

What they provide: Healthcare-specific threat briefs, analyst notes, and sector alerts. How to use it: Review HC3 threat briefs monthly. They explain threats in healthcare context with specific defensive recommendations. Key resource: Monthly threat briefings covering active campaigns targeting healthcare.

FBI Internet Crime Complaint Center (IC3)

What they provide: Alerts about cybercrime trends, active campaigns, and threat actor tactics. How to use it: Monitor for healthcare-specific advisories and report incidents. Key resource: Annual Internet Crime Report with healthcare breach statistics.

Health-ISAC (Information Sharing and Analysis Center)

What they provide: Member-shared threat intelligence, indicators of compromise (IOCs), and best practices specific to health sector. How to use it: If your practice is large enough, membership provides direct access to peer-shared intelligence. Smaller practices benefit from their public advisories.

Types of Threat Intelligence

Strategic Intelligence (Big Picture)

Trends in healthcare cyberattacks
Emerging threat actor groups targeting healthcare
Geopolitical factors affecting healthcare cybersecurity
Industry benchmarking data

Use case: Informing leadership decisions, budget allocation, and long-term security strategy.

Tactical Intelligence (Tools and Techniques)

Tactics, Techniques, and Procedures (TTPs) used by threat actors
Common attack patterns (phishing kits, exploit chains)
Malware families targeting healthcare (Ryuk, Conti successors, ALPHV/BlackCat)

Use case: Configuring security tools, developing detection rules, training staff on current threats.

Operational Intelligence (Active Campaigns)

Current ransomware campaigns targeting healthcare
Active phishing campaigns using healthcare themes
Zero-day vulnerabilities being exploited in the wild
Specific threat actor activity targeting your region or specialty

Use case: Immediate defensive actions, alerting staff, patching priorities.

Technical Intelligence (Indicators of Compromise)

Malicious IP addresses and domains
File hashes of known malware
Email addresses used in phishing campaigns
Command and control (C2) server addresses

Use case: Configuring firewalls, email filters, and endpoint detection tools to block known threats.

Healthcare-Specific Threats to Monitor

Ransomware Groups Targeting Healthcare

Active groups (as of 2026) known to target healthcare:

LockBit 3.0 variants — most prolific ransomware family
ALPHV/BlackCat successors — known for double extortion
Clop — specializes in exploiting file transfer vulnerabilities
Royal/BlackSuit — specifically targets healthcare organizations
Rhysida — emerged in 2024 with healthcare focus

Common Attack Vectors

Phishing (68% of initial access) — fake appointment confirmations, insurance notifications, EHR alerts
Exploitation of public-facing applications — unpatched VPN, email gateways, web portals
Compromised credentials — from dark web data breaches, credential stuffing
Supply chain attacks — through compromised vendor software updates

Emerging Threats

AI-generated phishing — increasingly convincing and personalized
Medical device exploitation — IoT/IoMT devices as network entry points
Cloud misconfigurations — exposed cloud storage with patient data
QR code phishing (quishing) — malicious QR codes in healthcare settings

Building a Threat Intelligence Program

For Small Practices (1-10 Providers)

Subscribe to free feeds:
- CISA alerts (cisa.gov/subscribe)
- HHS HC3 briefs (hhs.gov/hc3)
- US-CERT National Cyber Awareness System
Designate a point person:
- Review alerts weekly (15-30 minutes)
- Flag healthcare-relevant threats
- Communicate critical alerts to staff
Act on intelligence:
- Prioritize patching based on threat alerts
- Update email filters based on active campaigns
- Adjust staff training based on current tactics