Prompt injection: new technique to "rig" CV screening raises recruitment concerns
Technology

Prompt injection: new technique to "rig" CV screening raises recruitment concerns

SAPO Notícias28 August 2026 at 10:40

A new technique called "prompt injection" is worrying human resources professionals and companies that use artificial intelligence in recruitment processes. This practice involves including hidden instructions in candidates' resumes, with the aim of influencing automated screening systems.

The technique exploits vulnerabilities in AI tools that analyze resumes, causing them to interpret hidden instructions and prioritize the candidate over other profiles. Candidates use this strategy to manipulate selection algorithms without the recruiters' knowledge.

The phenomenon arises in the context of the growing adoption of artificial intelligence tools in recruitment processes, which promise greater efficiency and speed in candidate screening. However, this trend raises questions about the reliability and security of automated personnel selection systems.

Experts warn that the practice may compromise the fairness of recruitment processes and require new security measures from companies that depend on these technologies to select candidates.

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