Every other industry is catching a break from cybercriminals — except the one that keeps people alive. Cyberattacks fell as much as 57% in some sectors this year, but healthcare squeezed out just a 17% decline, according to the SonicWall 2026 Healthcare Protect Brief. That isn’t a rounding error. It’s a signal that attackers have made a deliberate, economic choice about where the money is, and they’ve picked hospitals.
Why Healthcare’s Cyberattack Decline Is the Smallest in Every Vertical
SonicWall’s data shows healthcare posting a 17% year-over-year decline in attacks, compared to -23% for professional services, -42% for education, -46% for retail, and -57% for manufacturing. Ten distinct ransomware groups are actively hunting healthcare organizations — more than any other sector — and in H1 2026, healthcare absorbed four times as many malware hits per firewall as the next most-attacked vertical.
This matters because the gap is widening, not closing. Attackers aren’t spraying and praying; they’re picking targets where downtime translates directly into patient harm and where the pressure to pay a ransom is stronger than anywhere else. If you’re a regional hospital group running on tight IT budgets, you’re not benefiting from the broader cybercrime slowdown — you’re absorbing the displaced volume from manufacturing and retail. The prediction here is uncomfortable but obvious: as defenses harden in other industries, healthcare’s relative share of incidents will keep climbing through 2027 unless boards start funding security like a clinical safety program, not a back-office expense.
How Remote Desktop Tools Became Healthcare’s Weakest Link
UltraVNC buffer overflow attacks alone generated 13.3 million hits in just five months, per SonicWall, and no other vertical saw remote desktop exploitation at that scale. Hospitals depend on these tools to support distributed clinicians, telemedicine workflows, and third-party vendors — biomedical engineers, EHR consultants, imaging contractors — who need access at odd hours. SonicWall notes that MFA is often not implemented, and a single compromised credential rarely unlocks just one app; it tends to unlock the whole network.
The practical scenario is grim and familiar: a vendor laptop with cached UltraVNC credentials gets stolen or phished, and within hours an attacker is pivoting from a remote-support session into the clinical VLAN where PACS imaging and EHR databases live. Teams building healthcare software for hospital customers need to treat remote access as a regulated surface, not a convenience feature — that means session recording, short-lived credentials, and MFA enforcement that vendors can’t negotiate around. The take: any healthcare vendor still shipping installers that lean on RDP or VNC without layered controls is going to find itself written out of procurement contracts within the next 18 months.
Why Connected Medical Devices Keep Outpacing Security Teams
SonicWall identified 243 unique attack methods targeting connected medical devices, naming IoT as the fastest-growing and hardest-to-patch exposure in the sector. Infusion pumps, patient monitors, and imaging systems often can’t run endpoint agents, rarely get patched on a normal cadence, and frequently share network segments with systems holding protected health information.
That’s the structural problem behind the headline numbers. A 15-year-old infusion pump can’t be re-architected, and the FDA clearance process makes firmware updates a multi-month exercise. If you’re a CISO at a 400-bed hospital, your inventory probably includes thousands of devices you didn’t buy, can’t agent, and can’t take offline. The answer isn’t patching — it’s segmentation, behavioral monitoring, and treating every medical device VLAN as hostile by default. Expect device manufacturers to face regulatory pressure to ship secure-by-design firmware updates and verifiable software bills of materials as a condition of procurement, especially as Zero Trust language migrates from CISA guidance into payer and accreditation requirements.
The Three Compounding Problems Attackers Are Chaining Together
“Healthcare does not have a cybersecurity problem. It has three of them,” said Michael Crean, SonicWall’s SVP of Managed Services — naming remote desktop tools without layered controls and MFA, a massive vulnerable IoT footprint, and targeted ransomware as the trio. “Attackers have figured out how to use all of them at the same time.”
That chaining is the part defenders underestimate. An attacker doesn’t need a zero-day when a VNC credential gets them onto a flat network where an unpatched imaging workstation becomes a staging point for ransomware across clinical systems. Crean’s broader point is sharper: “Hospitals cannot go dark, downtime is measured in patient outcomes, and the pressure to pay is unlike anything in any other sector.” The fix SonicWall prescribes — restrict UltraVNC and RDP to internal VLANs, enforce MFA with no vendor exceptions and no break-glass credentials, isolate medical IoT, and adopt application-level Zero Trust — reads less like a checklist and more like a baseline that should have been in place years ago. The prediction: cyber insurance underwriters will start requiring documented MFA-on-all-remote-access and network segmentation evidence at renewal, and hospitals that can’t produce it will see premiums become unaffordable before 2027 ends.
Where Identity and Zero Trust Fit Into the Fix
The through-line in SonicWall’s recommendations is identity. Remote access controls, vendor MFA, application-level Zero Trust — these are all identity problems wearing different costumes. Hospitals with modern identity and credentialing platforms covering clinicians, contractors, and devices can actually enforce those policies. Everyone else is writing PowerPoint decks about Zero Trust while still issuing shared service accounts to imaging vendors.
The concrete play for healthcare CIOs is to stop buying point solutions and start building an identity fabric that treats every session — human or machine — as untrusted until proven otherwise. The take: in 24 months, the differentiator between a breached hospital and an unbreached one will not be the firewall vendor; it will be whether device identity, clinician identity, and vendor identity all live in the same enforceable policy plane.
FAQ
Q: Why is healthcare targeted more than other industries? A: Per SonicWall, hospitals can’t tolerate downtime — outages translate into patient harm — which makes them more likely to pay fast. Combined with large IoT footprints and inconsistent MFA, the return on attacker effort is higher than in retail, manufacturing, or education.
Q: What is application-level Zero Trust in a healthcare context? A: It means every request to an application — from a clinician, a vendor, or a device — is authenticated, authorized, and continuously evaluated against policy, regardless of network location. For healthcare, it replaces the legacy assumption that anything inside the hospital VLAN is trustworthy.
Q: What are SonicWall’s most urgent recommended actions? A: Restrict UltraVNC and RDP to internal VLANs, enforce MFA for all remote access with no vendor exceptions or break-glass credentials, isolate connected medical IoT devices from clinical systems, and inventory clinical middleware and IoT firmware with a defined patch-or-isolate schedule.
Key Takeaways
- Healthcare organizations should expect attack volume to keep rising in relative terms as other industries harden — budget and board attention need to scale accordingly.
- Any remote access tool still operating without enforced MFA and network segmentation is a near-term breach vector; vendor contracts should make these requirements non-negotiable.
- Medical IoT can’t be solved by patching alone — segmentation and behavioral monitoring will become the procurement baseline, and manufacturers without verifiable SBOMs will get squeezed out.
- Cyber insurance and accreditation bodies will likely codify Zero Trust evidence requirements within 18 to 24 months; hospitals should start collecting that evidence now.
- Identity is the unifying control plane — investments in clinician, vendor, and device identity will pay back faster than any single perimeter tool.