An early-warning system is a process or channel for quickly sharing alerts about emerging threats, vulnerabilities, or incidents so that affected organizations can respond before harm spreads. It defines what signals qualify, who receives them, how quickly they are sent, and what action should follow.
In cybersecurity, early warning can help defenders coordinate responses to newly exploited vulnerabilities, active attacks, or risks involving shared suppliers and services. Effective systems need trusted contacts, clear reporting rules, and procedures for validating and handling sensitive information. In AI governance, they may also help institutions communicate emerging risks tied to model behavior, data handling, or vendor updates. An alerting channel supports response, but does not replace investigation, technical controls, or enforcement.