Why Healthcare Remains Exposed to Cyberthreats
Healthcare IT environments are highly distributed, often spanning hospitals, clinics and third-party providers, and must support continuous, real-time operations.
“There are a lot of entities in the sector that are quite complex,” Sheldon says. “They must interconnect with different facilities across different regions, which becomes unwieldy from the defender’s perspective.”
Unlike other industries, healthcare organizations cannot easily take systems offline to patch or isolate them without affecting patient care.
“There’s a high degree of continuity that’s required, with little room for error,” Sheldon says.
Meanwhile, legacy systems and specialized medical devices often remain in use for years or decades. These systems may not support modern security controls, creating persistent vulnerabilities that must be managed rather than eliminated.
READ MORE: Ensure healthcare business continuity when IT fails.
Identity Is Now the Front Line of Healthcare Security
Threat actors are increasingly bypassing software vulnerabilities altogether and focusing on credentials.
“Rather than hunting for vulnerabilities, they’re going straight after credentials as the fastest, most reliable path into the environment,” Sheldon says.
Once attackers gain access through compromised credentials — whether via phishing, social engineering or reused passwords — they can move laterally across systems with speed and precision.
Defending against this requires a more dynamic approach to identity security. Organizations are moving beyond static access controls toward conditional models that continuously evaluate risk.
“There’s more need to have conditional access based on what someone’s role might be, but also whether their device is compliant, their location is expected or their behavior is normal,” Sheldon says.
This level of granularity allows security teams to detect anomalies earlier and intervene before attackers can escalate privileges or expand their reach.
