Telecom security regulation exposes the limits of legacy IAM tools

At a glance

What this is: This is an analysis of how telecom security regulations are reshaping identity governance, with the central finding that legacy IGA and PAM tools only expose part of the access surface.

Why it matters: It matters because telecom providers and their IAM teams now have to govern network, cloud, and third-party access as one control plane, not as separate identity silos.

By the numbers:

• Traditional Identity Governance and Administration tools typically see only 20-30% of actual access due to limited connectors.
• Only 5.7% of organisations have full visibility into their service accounts.

👉 Read Hydden's analysis of telecom identity governance and regulatory compliance

Context

Telecom security regulation has moved from guidance to enforceable identity controls, and the primary issue is visibility. UK, EU, Australian, and Singaporean frameworks now expect organisations to know which identities can reach security-critical functions, who is using them, and whether privileged access is temporary, reviewed, and auditable.

That expectation collides with environments built from legacy network equipment, cloud platforms, development tools, and third-party suppliers. In telecom, identity governance is not just about human users in a directory. It is about service accounts, vendor access, embedded credentials, and privileged paths that often sit outside the reach of standard IAM tooling.

Key questions

Q: How should telecom providers govern privileged access across legacy and cloud environments?

A: They should treat privileged access as a single governance problem across routers, switches, mainframes, cloud platforms, and DevOps tools. The practical test is whether every elevated account is discoverable, tied to a purpose, time-bounded, and logged. If any of those conditions fail, the organisation cannot prove control across the full telecom estate.

Q: Why do telecom environments expose gaps in traditional IGA and PAM coverage?

A: Telecom environments mix decades of legacy infrastructure with modern cloud and supplier access, so standard connectors rarely see the full entitlement set. That creates blind spots in certification, audit, and anomaly detection. The problem is not only enforcement. It is that governance cannot be trusted if the underlying identity data is incomplete.

Q: What do security teams get wrong about third-party access in telecom?

A: They often treat supplier access as a contract issue instead of an identity governance issue. In practice, vendor accounts, shared credentials, and managed service access need the same inventory, review, and offboarding discipline as internal identities. If the supplier path is invisible, the risk is unmanaged even when the contract looks sound.

Q: Who is accountable when telecom identity controls fail regulatory review?

A: Accountability sits with the organisation that owns the regulated service, even when access is delivered through a supplier or a legacy platform. Frameworks such as NIS2 and the UK Telecommunications Security Act expect demonstrable control, not shared blame. The team accountable for evidence is the team accountable for compliance.

Technical breakdown

Why telecom identity governance breaks at environment scale

Telecom networks combine old and new control planes, which makes identity discovery harder than in a conventional enterprise. Legacy routers, switches, mainframes, SaaS platforms, and DevOps tools each store or broker access differently, so a single IGA workflow rarely sees the full entitlement graph. The result is fragmented evidence, incomplete recertification, and weak auditability. When regulators ask who can reach a security critical function, the answer depends on whether the organisation can actually enumerate all identities and access paths across those environments.

Practical implication: build a complete identity inventory before trying to certify access or prove least privilege.

Privileged access in telecom must be time-bounded and attributable

The UK Telecommunications Security Act reflects a broader regulatory pattern: elevated access should be temporary, purpose-bound, and tied to a documented change or ticket. That is a governance model, not just a PAM feature. It assumes you know which accounts are privileged, which sessions are legitimate, and which access paths should be denied by default. Where accounts exist outside standard directories or are shared across operations teams, the policy intent and the technical control can diverge quickly.

Practical implication: map every privileged account and session path to a named business purpose before relying on PAM controls.

Third-party access is now part of the compliance surface

Telecom regulation increasingly treats suppliers as part of the regulated attack surface, which means vendor access must be visible, segmented, and reviewable. Shared responsibility language in contracts is not enough if the organisation cannot observe third-party accounts, managed service access, or vendor credentials embedded in operational tooling. This is where identity governance becomes a supply chain control. If access cannot be traced back to a supplier, a purpose, and an expiry condition, the control environment is incomplete.

Practical implication: include supplier identities in the same review and logging process as internal privileged accounts.

NHI Mgmt Group analysis

Telecom compliance is now an identity visibility problem, not a policy problem. The article shows that modern telecom regulation assumes complete knowledge of who and what can reach security-critical functions. Traditional IGA and PAM controls fail when they cover only part of the environment, because the compliance burden is tied to discovery, not just enforcement. Practitioners should treat incomplete discovery as the primary control gap.

Standing privilege in telecom is the governance failure the regulations are trying to eliminate. The TSA's time-bounded access model exists because persistent elevated access creates untracked operational risk in networks that never really stop changing. This aligns closely with OWASP Non-Human Identity Top 10 and NIST Cybersecurity Framework 2.0 access governance expectations. The implication is that telecom teams need a current inventory of all privileged paths before recertification has any value.

Third-party access without lifecycle offboarding is a regulated exposure, not an administrative inconvenience. The article makes clear that suppliers, managed service providers, and contractors belong inside the same access control model as employees. That is especially important in telecom, where vendor environments and shared accounts often outlive the work they were created for. Practitioners should read this as a lifecycle governance problem with audit consequences.

Identity intelligence is becoming the control layer that lets existing PAM and IGA investments work at telecom scale. The article's strongest point is not that organisations need another point tool, but that their current tools cannot govern what they cannot see. This is the practical direction of the market: discovery, enrichment, and continuous monitoring are becoming prerequisites for usable identity governance. Teams should re-evaluate whether their control stack can produce regulator-grade evidence across network, cloud, and supplier access.

Assumed compromise was designed for environments where defenders can already see the identity surface. That assumption fails when telecom estates contain unknown accounts, hidden service credentials, and third-party access paths outside standard governance coverage. The implication is that compliance programmes must rethink what can be reviewed, certified, and logged when the regulated object is only partially visible.

From our research:

• Only 5.7% of organisations have full visibility into their service accounts, according to Ultimate Guide to NHIs.
• Another signal: 97% of NHIs carry excessive privileges, which broadens the attack surface when telecom estates cannot inventory every account, according to Ultimate Guide to NHIs.
• Forward pivot: For the governance mechanics behind that visibility gap, see Ultimate Guide to NHIs , Lifecycle Processes for Managing NHIs.

What this signals

Identity discovery is becoming the gating control for telecom compliance programmes. If teams cannot enumerate service accounts, vendor credentials, and network-adjacent privileged paths, every downstream activity such as review, logging, and certification becomes evidence-light. With only 5.7% of organisations reporting full visibility into service accounts, the gap is structural, not cosmetic.

Telecom teams should expect regulators to keep moving toward evidence of continuous control rather than periodic attestations. That means access governance must operate across legacy infrastructure and cloud estates at the same time, with supplier access folded into the same monitoring model. The organisations that can produce trusted identity data will move faster through audits and remediation cycles.

For practitioners

• Build a telecom-wide identity inventory Discover accounts across network infrastructure, legacy systems, cloud platforms, DevOps tools, and supplier environments before recertification begins. If an entitlement is not in the inventory, it cannot be certified, logged, or excluded with confidence.
• Tie privileged access to named business purpose Require each elevated session to map to a specific ticket, operator, and security critical function. Remove self-grant paths and daily update exceptions from your operating model, because they create audit gaps the regulations are designed to eliminate.
• Extend review campaigns to third-party identities Include vendor accounts, shared supplier credentials, and managed service access in the same certification workflow as internal accounts. Verify segmentation, expiry conditions, and offboarding evidence for each supplier path.
• Use continuous monitoring to replace point-in-time reassurance Track access changes, privilege drift, and anomalous behaviour in real time across hybrid estates. Pair those signals with the NIST Cybersecurity Framework 2.0 and the NIST SP 800-207 Zero Trust Architecture model so regulators see an operating control, not a periodic snapshot.

Key takeaways

• Telecom regulation now measures identity governance by what you can discover, not just what you can restrict.
• Legacy infrastructure, cloud services, and supplier access create a visibility gap that standard IGA and PAM deployments often cannot close.
• Continuous discovery and lifecycle governance are the controls that turn telecom compliance from theoretical policy into auditable practice.

Key terms

• Security critical function: A security critical function is an operational capability whose compromise would materially affect service continuity, resilience, or control. In telecom, these functions become governance anchors because they define which identities, access paths, and logs must be visible, reviewed, and protected first.
• Standing privilege: Standing privilege is persistent elevated access that remains available without a fresh approval or task-specific justification. In regulated environments, it creates audit and misuse risk because the access exists before it is needed and often remains after the work has finished.
• Identity discovery: Identity discovery is the process of finding all accounts, credentials, and access paths across an environment so they can be governed. It is the foundation for telecom IAM because you cannot certify, monitor, or revoke access that your controls never detected.
• Third-party access lifecycle: Third-party access lifecycle is the end-to-end governance of supplier, contractor, and managed service identities from onboarding through offboarding. It matters because access granted outside the core workforce often outlives the business relationship unless review and revocation are explicitly enforced.

Deepen your knowledge

NHI governance, agentic AI identity, and machine identity lifecycle are core topics in our NHI Foundation Level course, the industry's only accredited NHI security programme. If you are responsible for identity security strategy or NHI governance in your organisation, it is worth exploring.

This post draws on content published by Hydden: telecom security regulation and identity governance across the UK, EU, Australia, and Singapore. Read the original.