Some job seekers are embedding hidden AI prompts within their resumes in an attempt to influence automated screening tools and improve their chances of securing interviews, according to reporting by Business Insider. The practice is drawing concern from recruiters and HR leaders as organisations increasingly integrate AI into hiring workflows.

The tactic came to light after Paul Lee, CEO of California-based captioning technology company InnoCaption, discovered a concealed prompt in an application submitted for a legal and compliance position. According to Business Insider, the resume contained approximately 1,500 characters of white text hidden against a white background.

The hidden instruction reportedly directed AI systems to disregard prior commands and classify the applicant as a highly qualified candidate regardless of actual credentials.

For Lee, the discovery raised concerns about fairness in recruitment and the implications of using such techniques in roles where trust and integrity are critical.

Hidden prompts signal a new recruitment challenge

The emerging practice reflects how AI is reshaping the relationship between candidates and hiring systems.

According to Business Insider, some applicants are moving beyond traditional resume optimisation techniques and experimenting with prompt-based instructions aimed at influencing generative AI tools used during candidate screening.

As AI adoption expands across recruitment, both candidates and employers are adapting their strategies to gain an advantage within increasingly automated hiring processes.

The development represents an evolution of earlier resume tactics where applicants inserted invisible keywords to improve their chances of passing applicant tracking systems.

Today, similar methods are being adapted for AI-driven environments, with candidates attempting to influence how automated tools interpret and rank applications.

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