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19/08/2026 4:06 pm
TL;DR: Bug bounty scope for third-party assets is mainly a governance problem, not a testing problem, because organisations must separate what they own from what they can legally and operationally authorise, according to INTIGRITI. Scope clarity, written permission, and quarterly review matter because unmanaged external services can create reporting noise, legal exposure, and unfixable findings.
NHIMG editorial — based on content published by INTIGRITI: How should I scope third-party assets in my bug bounty program?
By the numbers:
- Only 20% have formal processes for offboarding and revoking API keys, and even fewer have procedures for rotating them.
- 92% of organisations expose NHIs to third parties, raising concerns about supply chain security.
- 96% of organisations store secrets outside of secrets managers in vulnerable locations including code, config files, and CI/CD tools.
Questions worth separating out
Q: How should security teams scope third-party assets in a bug bounty program?
A: Start by separating ownership from visibility.
Q: Why do third-party assets complicate bug bounty governance?
A: They complicate governance because the organisation may see the asset, but not control the permissions, legal authority, or fix path.
Q: What breaks when third-party scope is too broad?
A: You get findings that cannot be fixed directly, reports that duplicate a supplier’s own disclosure process, and possible legal exposure for researchers.
Practitioner guidance
- Define scope by control authority Classify each external asset by who owns it, who can authorise testing, and who can remediate findings.
- Require supplier written consent Obtain written approval from the third party before adding its systems, hosted services, or components to the programme.
- Publish in-scope and out-of-scope labels Use clear labels in policy and researcher guidance to show which third-party assets are testable, which are excluded, and which require separate handling because they sit under another programme.
What's in the full article
INTIGRITI's full blog post covers the operational detail this post intentionally leaves for the source:
- The article's exact guidance on when a hosted subdomain or embedded service should stay out of scope despite being visible to researchers.
- The triage wording Intigriti uses for vendor awareness, eligibility, and forwarding vulnerabilities to the component owner.
- The policy language it recommends for permission, exclusions, and labels that researchers can use without ambiguity.
- The practical examples of third-party SaaS, PaaS, libraries, and integrations that fit or do not fit scope decisions.
👉 Read INTIGRITI's guidance on scoping third-party assets in bug bounty programs →
Third-party assets in bug bounty programs: what should be in scope?
Explore further
19/08/2026 4:40 pm
Third-party bug bounty scope is really a trust-boundary problem. The article is correct to focus on permission, exclusion, and operational ownership because the technical location of an asset does not determine who is accountable for testing it. In identity terms, this is the same governance mistake organisations make when they treat external access as if it were internally governed. The practical conclusion is that scope policy must map authority, not just infrastructure presence.
A question worth separating out:
Q: Who is accountable when misconfigurations in third-party environments lead to breaches?
A: Accountability usually sits with both the organisation owning the data and the provider or partner operating the environment, but the defender’s obligation does not disappear. Security teams must verify controls directly, document ownership for access decisions, and avoid assuming that a contract or SOC report proves the current live posture.
👉 Read our full editorial: Third-party assets in bug bounty programs need tighter scope control
