How is An OPSEC indicator is defined as?

An OPSEC (Operational Security) indicator is defined as a piece of information or a behavior that could reveal sensitive aspects of an operation or activity, potentially compromising its security. These indicators can include patterns of communication, specific actions taken by personnel, or any observable data that could be exploited by adversaries. Identifying and mitigating these indicators is crucial to safeguarding operations from unauthorized access or intelligence gathering.