A moral immune system is the set of instruments by which an organisation detects, responds to, and recovers from ethical decay — the cultural analogue of the biological immune response. This white paper specifies the architecture.

The system comprises detectors (instruments that sense decay patterns), responders (governance surfaces that intervene), and memory (the records that prevent recurrence). Together they form a self-correcting loop that keeps ethical-management maturity from trending toward entropy.

For enterprises that want ethical management to sustain rather than decay, the moral immune system is the infrastructure that makes sustainability structural.