Cut the Noise, Keep the Signal: The Hidden Cost of Duplicate Reports

Morgan Pearson
Sr. Product Marketing Manager
Martijn Russchen
Principal Product Manager
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Hai Deduplication Agent

In the fast-moving world of security testing, noise has become one of the biggest hidden costs. Every week, security teams receive a flood of vulnerability reports, many of them duplicates of issues already logged or fixed.

Sorting through those reports is both tedious and expensive. Each duplicate adds review time, stretches analyst capacity, and delays the validation of new findings that could actually reduce risk. For researchers, duplicate submissions are just as frustrating—they can mean slower responses or missed recognition for valuable work.

The challenge is about visibility. When analysts spend hours re-reviewing the same findings, truly critical vulnerabilities risk getting buried. The result: more bottlenecks, slower remediation, and less trust between researchers and security teams.

Scaling Signal Over Noise

Duplicate reports are an inevitable byproduct of collaborative security testing. When hundreds or thousands of skilled researchers explore the same attack surface, some overlap is bound to occur.

Manual review can catch many of these, but at scale, even the best analysts can’t identify every duplicate or recognize every shared pattern across global submissions. It’s a human problem magnified by scale.

That’s where smarter deduplication comes in. The opportunity lies in expanding coverage, automatically filtering noise while maintaining fairness, transparency, and researcher trust. Deduplication done right not only saves time but also protects the relationship between programs and the researcher community.

Smarter Deduplication with Agentic AI

Where traditional validation depends solely on manual review, HackerOne combines human expertise with agentic AI efficiency.

This combination accelerates validation without losing the nuance of expert judgment for faster recognition of legitimate reports, quicker closure on known issues, and less fatigue for analysts and researchers alike.

The Hai Agentic AI system builds on the world’s largest dataset of validated vulnerabilities. It cross-checks incoming reports against known global patterns, using CWE identifiers, CAPEC categories, payload similarities, and metadata correlations, to identify potential duplicates before they ever hit an analyst’s queue.

The Deduplication Agent:

  • Cross-checks against global patterns: CWE, CAPEC, payloads, and metadata.
  • Compares report content to highlight meaningful differences and similarities.
  • Learns continuously from outcomes, improving precision with every submission.
  • Delivers deduplication coverage across 80%+ vulnerability types, with human oversight ensuring fairness and accuracy.

Why Smarter Deduplication Matters

Smarter deduplication turns what used to be an administrative drag into a competitive advantage: 

  • Efficiency: Analysts reclaim hours once lost to manual duplicate sorting.
  • Consistency: Automated coverage means fewer findings slip through the cracks.
  • Fairness: Researchers get credit where it’s due, without unnecessary delay.
  • Clarity: Less noise in the queue allows focus on real, exploitable risk.

Deduplication is about restoring confidence in the validation process itself. When teams can trust that every finding is unique, verified, and prioritized accurately, they spend less energy second-guessing results and more time improving defenses.

Deduplication That Delivers Clarity at Scale

Duplicates are unavoidable. Wasting time on them isn’t.

By pairing AI’s precision with human expertise, deduplication becomes faster, fairer, and more consistent. With 80%+ coverage powered by agentic AI and expert oversight, security leaders can trust that only the right signals rise above the noise, helping teams move faster, act smarter, and stay focused on what matters most.

Learn more about Hai

About the Authors

Morgan Pearson Headshot
Morgan Pearson
Sr. Product Marketing Manager

Morgan Pearson is a Senior Product Marketing Manager at HackerOne. She connects AI-driven product innovation with cybersecurity challenges and business impact.

Martijn Russchen Headshot
Martijn Russchen
Principal Product Manager

Martijn Russchen is a Principal Product Manager at HackerOne. He leads the development of Hai, HackerOne’s team of AI agents, driving innovation to help customers maximize their security impact.