What are potential signs of espionage activities known as?

The term used to describe potential signs of espionage activities is "indicators." In the context of counterintelligence, indicators refer to specific behaviors or actions that may suggest espionage is occurring. These can include unusual patterns of communication, unauthorized access to sensitive information, or individuals exhibiting suspicious behavior within secure areas. Identifying these indicators is vital for organizations to proactively detect and mitigate potential espionage threats.

The other terms—signals, warning signs, and red flags—can also refer to signs of potential risks, but "indicators" is the most commonly used terminology in the field of counterintelligence to specifically denote signs that may point to espionage activities. By focusing on indicators, individuals and organizations can enhance their ability to recognize and respond to threats effectively.