What does 'PSI' stand for in the context of personnel security?

'PSI' stands for Personnel Security Investigation in the context of personnel security. This term refers specifically to the processes and assessments conducted to determine an individual's eligibility for access to classified information or for positions of trust within an organization. A Personnel Security Investigation generally involves a comprehensive review of an individual's background, including their criminal history, financial stability, and character references, to evaluate their suitability and reliability for sensitive roles.

In personnel security practices, maintaining rigorous investigation protocols ensures that individuals in positions of responsibility are trustworthy, which is crucial for protecting national security and safeguarding sensitive information. This terminology is widely recognized and utilized within agencies and organizations that manage sensitive data and classified operations.