Accountability usually sits with the teams that own DNS governance, resolver configuration, and domain administration, because those controls determine whether spoofed responses can be trusted. For regulated environments, the broader question is whether identity-adjacent dependencies such as DNS are included in security control ownership and review cycles.
Why This Matters for Security Teams
Forged DNS responses are not just a network nuisance. They are an accountability problem because DNS sits at the junction of domain ownership, resolver trust, endpoint behaviour, and incident response. If security ownership is unclear, teams may assume another group is monitoring the path where name resolution can be subverted. That gap matters because users will still reach a site that looks valid, even when the response was manipulated upstream.
NHI Management Group’s Ultimate Guide to NHIs notes that 90% of IT leaders say properly managing NHIs is essential for a successful zero-trust implementation, which is relevant here because DNS is often one of the identity-adjacent dependencies that supports trust decisions. The control question is not only who owns the domain, but who is accountable for resolver integrity, DNSSEC posture, and change review across the path that translates names into destinations. NIST’s NIST Cybersecurity Framework 2.0 is useful here because it frames governance, protection, detection, and response as shared responsibilities rather than isolated technical tasks.
In practice, many security teams encounter DNS poisoning only after users have already been redirected and the incident has moved from configuration risk to business impact.
How It Works in Practice
Accountability usually follows control ownership, not just technical blame. The team that owns DNS governance is typically responsible for secure resolver configuration, change control, logging, and validation mechanisms such as DNSSEC where supported. The domain administration function is usually accountable for registrar settings, zone management, and recovery actions if records are altered. Network and endpoint security teams may share detection duties, but they are not usually the primary owners of the trust chain that lets forged responses succeed.
Practitioners should separate three layers of control:
- Authoritative domain control, including registrar access, zone file changes, and delegation reviews.
- Resolver trust, including secure forwarding, cache protection, and monitoring for anomalous lookups.
- Client-side and application-side resilience, such as certificate validation, safe browsing controls, and alerting on redirect anomalies.
Current guidance suggests DNSSEC can reduce spoofing risk, but it is not a universal fix because deployment gaps, misconfigurations, and incomplete validation still leave room for abuse. The operational model should therefore include ownership mapping, approval workflows, and evidence that DNS-related changes are reviewed like other identity-sensitive controls. The Ultimate Guide to NHIs is relevant because DNS often supports access paths for service accounts, API endpoints, and other machine identities that depend on consistent name resolution to function safely.
These controls tend to break down when DNS administration is split across infrastructure, application, and managed service teams because no single owner is accountable for the trust boundary.
Common Variations and Edge Cases
Tighter DNS control often increases operational overhead, requiring organisations to balance rapid record changes against stronger review and validation. That tradeoff becomes more visible during outages, cloud migrations, and third-party cutovers, when teams want speed but also need trustworthy resolution.
There is no universal standard for this yet, but current guidance suggests the accountable party depends on where the failure occurred. If the registrar was compromised, domain administration owns the gap. If a resolver cache was poisoned or a forwarding rule was altered, infrastructure or network security may own remediation. If the forged response led users to a malicious lookalike site because browser protections or certificate checks were bypassed, endpoint and application control owners may share accountability.
Useful practice is to document DNS in the same ownership register as other identity-adjacent dependencies and to treat resolver integrity as part of security governance, not only operations. When third-party DNS services are used, accountability should be explicit in contracts, escalation paths, and incident playbooks. NHI Mgmt Group’s research also shows that only 5.7% of organisations have full visibility into their service accounts, which is a reminder that indirect trust dependencies are often less visible than the teams assume. That same visibility gap applies to DNS in many environments, especially where cloud-managed zones and delegated administration are mixed.
Standards & Framework Alignment
This section maps relevant standards and security frameworks to the operational risks and controls described in this guidance.
NIST CSF 2.0, NIST CSF 2.0 and NIST CSF 2.0 set the governance and control requirements practitioners need to meet.
| Framework | Control / Reference | Relevance |
|---|---|---|
| NIST CSF 2.0 | GV.OC-02 | DNS ownership is part of governance and dependency mapping. |
| NIST CSF 2.0 | PR.DS-02 | Forged DNS responses undermine data integrity in transit and at resolution. |
| NIST CSF 2.0 | DE.CM-08 | Monitoring DNS anomalies is necessary to detect spoofing and redirection. |
Alert on unusual DNS patterns, resolver changes, and unexpected destination shifts.
Related resources from NHI Mgmt Group
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Reviewed and updated by the NHIMG editorial team on June 23, 2026.
NHI Mgmt Group — the #1 independent authority on Non-Human Identity, IAM, and Agentic AI security. nhimg.org
