What should a derivative classifier do when they encounter unconfirmed sources?

A derivative classifier should consult with a supervisor when encountering unconfirmed sources because this ensures a higher level of scrutiny and adherence to classification guidelines. Consulting with a supervisor allows the classifier to seek guidance on how to properly assess the credibility of the information and to determine whether it should be classified or not. This collaborative approach helps to mitigate risks associated with making decisions based on potentially inaccurate or incomplete information.

Using unconfirmed information carries the risk of inadvertently disclosing unclassified information or misclassifying sensitive data. Therefore, having a supervisor involved can help verify the information's reliability and ensure that the classification process aligns with established policies and procedures. This practice reinforces the importance of teamwork and oversight in the classification process, thereby maintaining the integrity and security of sensitive information.