Which of the following is a potential red flag regarding a foreign national's qualifications?

Fabricated work histories serve as a significant red flag regarding a foreign national's qualifications because they indicate deceit and intention to mislead. A legitimate resume should reflect honest and verifiable experiences that contribute to an individual's qualifications for a position. When work histories are fabricated, it not only casts doubt on the authenticity of the individual’s skills and experiences but also raises concerns about their integrity and trustworthiness.

In the context of counterintelligence, recognizing these fabricated details is crucial as they may point to individuals attempting to infiltrate or gain access to sensitive information under false pretenses.

Enhanced educational backgrounds, resumes with references, and international job experience—while they can all provide valuable insights into an individual’s qualifications—are not inherently problematic. These elements can often be verified and sometimes reflect valid and legitimate strengths or benefits to a candidate's portfolio. Therefore, a fabricated work history stands out as a distinctly negative indicator that warrants further investigation.