SonicWall’s latest Healthcare Protect Brief warns that healthcare remains the most persistently targeted industry, with millions of remote desktop attacks, widespread IoT exploitation, and increasing ransomware activity showing no signs of slowing in 2026.
SonicWall’s 2026 Healthcare Protect Brief paints a stark picture of an industry under sustained cyber pressure, revealing that healthcare continues to be the most consistently targeted sector in the company’s global threat telemetry. While cyberattack volumes declined across most industries, healthcare saw the smallest year-over-year drop—just 17%—indicating that attackers are maintaining focus on the sector despite broader downward trends elsewhere.
One of the most significant findings in the report is the scale of remote desktop exploitation, with more than 13.3 million UltraVNC attack attempts recorded in just five months. SonicWall attributes this to the widespread use of remote access tools in hospitals and clinics, which are often exposed to the internet and linked to internal systems in ways that expand potential attack surfaces. Once credentials are compromised, attackers can potentially gain broad access across healthcare environments.
The report also highlights the growing risk posed by connected medical devices, with 243 distinct IoT attack signatures targeting healthcare systems. Many of these devices cannot be easily patched or secured with endpoint protection, yet they often operate on the same networks as critical clinical infrastructure. SonicWall also noted that legacy vulnerabilities—some dating back years—continue to be actively exploited, underscoring the long lifecycle of risk in healthcare environments.
Ransomware activity remains another major concern, with ten active ransomware families simultaneously targeting healthcare organizations in the first half of 2026—more than any other industry tracked. SonicWall argues that the persistence of attacks is driven by structural realities: hospitals cannot afford downtime, making them high-value targets for extortion. The report concludes that addressing these challenges requires a shift toward Zero Trust architectures and more standardized security deployment models, particularly as healthcare organizations continue to expand digital and connected care systems.
