A clinical decision support system (CDSS) is software that helps healthcare workers evaluate patient data, guidelines, and test results so they can make clinical choices. It may generate alerts, recommend next steps, flag drug interactions, or surface relevant evidence inside an electronic health record. Some CDSS tools are rule-based; others use analytics or AI models to rank risks and suggestions.
In cyber security, a CDSS matters because it can directly affect patient care and often has access to sensitive health data. If attackers tamper with its inputs, configuration, or model data, they may change recommendations, suppress warnings, or expose protected information. Defenders reduce this risk with strong access control, logging, integrity checks, validation of outputs, and human oversight. In practice, a secure CDSS is not only accurate; it must also be trustworthy, monitored, and resistant to unauthorized change.