Healthcare organizations face a growing threat as identity systems become the modern security perimeter. When these systems fail, the entire business feels it. The hackers broke into Stryker’s systems via stolen administration credentials, harvested by infostealer malware. This incident shows how dependent modern enterprise is on identity systems. [1] NIH Translates 70 Years of Health Data Into a Common Language
Why Identity Is the New Perimeter
With the identity layer encompassing everything from application access to remote connections, daily operations can come screeching to a halt. Employees can’t log in, applications can’t start, administrative access becomes impossible and VPNs fail. Today, hackers understand identity systems’ vital role and are quick to target them to launch attacks. According to Palo Alto Networks’ 2026 Unit 42 Global Incident Response Report, identity weaknesses were part of nearly 90% of their investigations. In fact, a recent Semperis survey of 1,100 IT and security professionals found that 75% of healthcare organizations expect artificial intelligence to make identity attacks more common — yet only 27% are very confident they could recover if an AI agent exposed admin credentials.
Downstream businesses also feel the impact. Modern enterprises are increasingly interconnected, and with national supply chains dependent on continuous service delivery, one compromised identity can set off a chain reaction of disruption beyond the original breach. In healthcare, those disruptions can jeopardize patient care.
The effects spiral when bad actors move deeper into critical systems, but the dangers start much earlier when security teams blind themselves to unseen identity vulnerabilities. Common attack vectors include stolen credentials and weaknesses in platforms such as Active Directory and cloud identity services. If healthcare organizations get caught up in the mix, even small delays in incident response can lead to downstream patient care risks.
Building True Cyber Resilience
Companies that adopt an “assume breach” mindset will be better prepared to respond to threats when they occur. Resilience starts with assuming identity will be targeted, but it becomes real when organizations can spot weakness early, rehearse response and remediate faster. Operating with an “assume breach” approach also means staying vigilant. If a compromise is detected in one portion of a network, it’s wise to assume there may be others still hidden. Quick containment, investigation and response are key to limiting impact and maintaining trust in high-risk environments.
Healthcare organizations should also monitor unauthorized changes occurring in their Active Directory infrastructure and have real-time visibility into changes to raised network accounts and groups, as well as a fast means of performing a clean recovery. For healthcare organizations, one compromised identity can lead to disruptions in patient care, and disruptions across a vast network of companies that feed into an organization’s supply chain. Prioritizing true identity resilience will stop the chain reaction at its source and increase an organization’s overall security.