A Hospital Information System (HIS) is the software layer that manages core hospital workflows such as patient registration, admissions, records, orders, and coordination between departments. It often sits at the center of clinical operations, so even short outages can slow care and force staff into manual workarounds.
In cyber security, HIS platforms matter because they create a high-value target and a large blast radius. If attackers disrupt or lock the system, hospitals may lose access to live charts, scheduling, and handoffs across multiple units or facilities. Defenders reduce this risk with network segmentation, strong backups, monitoring, and tested downtime procedures so staff can keep treating patients on paper or offline tools while systems are restored.