This document provides information about recognizing and reporting concerning behaviors in the workplace that could indicate an insider threat. It discusses improving awareness of unexpected behaviors and how to trust your instincts if something feels wrong. Examples of concerning behaviors are described like unusual questions, changes in work patterns, and signs of stress. The document urges reporting suspicions to the proper authorities and not ignoring issues, as problems could develop or harm could occur if left unaddressed. Reporting systems are intended to follow-up discreetly and protect confidentiality.