Insurers should treat identity as the control plane for every interaction, not just login. That means replacing scattered checks with standards-based authentication, centralized policy, and scoped authorization across users and APIs. The practical goal is to reduce fraud exposure while keeping self-service, mobile claims, and partner integrations fast, consistent, and easier to govern.
Why Insurance Identity Modernization Has to Cover Customers, APIs, and Partners Together
Insurance journeys fail when identity is handled as a series of disconnected checkpoints. A customer may authenticate once, but the same interaction can still depend on API tokens, mobile app sessions, partner credentials, and service-to-service trust. Modernising only the front door leaves fraud paths, support friction, and inconsistent assurance across claims, policy servicing, and broker workflows. For insurers, the real design problem is making trust consistent without forcing every low-risk action through the same heavy check. NIST’s control families on access control, identification, authentication, and system-to-system protections are useful here, but they only work when applied as one policy model across the journey, not as separate fixes per channel. NIST SP 800-53 Rev 5 Security and Privacy Controls gives a useful reference point for that kind of joined-up governance. In practice, many insurers discover their weakest control path only after a new digital journey has already been launched and fraud or abandonment starts showing up in production.
How Insurers Can Make Identity Controls Feel Lighter Instead of More Frictional
The best modernization pattern is to separate assurance from user experience. Customers should not experience a monolithic “login security” event every time they move from quote to claim, or from policy view to payment update. Instead, insurers can use a central identity policy layer to decide what level of assurance is needed for the specific action, device, channel, and risk signal. That lets the organisation keep higher assurance for sensitive events such as payout changes, beneficiary updates, or large claims, while keeping routine self-service fast.
For APIs and services, the same idea applies at machine speed. Each application, partner, and microservice should present its own scoped identity, with permissions limited to the minimum needed for the business function. That avoids the common failure mode where one broad token or shared credential quietly becomes a transport layer for fraud, scraping, or internal misuse. It also makes audit and revocation materially easier because the insurer can see which identity performed which action, rather than relying on a web of embedded trusts.
- Use consistent authentication methods across channels so the same user does not face different trust rules in different apps.
- Apply step-up checks only when the action or risk signal justifies it, not as a default for every interaction.
- Bind service and API permissions to business purpose, not to convenience or deployment shortcuts.
- Design recovery, reset, and exception handling as part of the journey, because that is where customers feel friction most sharply.
In practice, insurers modernise fastest when identity, fraud, API security, and customer experience teams share the same policy view, because otherwise each group optimises for a different failure and the customer inherits the friction.
Where the Modern Model Breaks Down: Legacy Journeys, Edge Cases, and Assurance Drift
Tighter identity control often increases policy complexity, requiring insurers to balance stronger assurance against the risk of introducing avoidable customer friction. That tradeoff becomes visible in legacy portals, outsourced claims platforms, and partner integrations that cannot easily support modern token handling or risk-based prompts.
One common edge case is when a business treats “digital identity” as only customer authentication and leaves service accounts, bots, and backend integrations under lighter governance. That is a governance gap, not just a technical one, because attackers and insiders often exploit whichever identity path is least visible. Another edge case is overusing step-up verification. If every high-frequency task is treated as sensitive, the insurer can make mobile servicing so cumbersome that users abandon self-service and revert to call centres or unsafe workarounds.
There is also a measurement problem. If teams only track login success rates, they miss whether identity controls are actually reducing fraud, account recovery abuse, and unauthorized changes. The stronger pattern is to measure assurance where it matters: key transaction success, suspicious recovery events, API token misuse, and exceptions granted outside normal policy. Guidance on how much assurance is “enough” still varies by journey and risk appetite, so insurers should treat that as an operational judgement rather than a universal rule.
Standards & Framework Alignment
This section maps relevant standards and security frameworks to the operational risks and controls described in this guidance.
OWASP Non-Human Identity Top 10 and MITRE ATT&CK address the attack and risk surface, while NIST CSF 2.0 and CIS Controls v8 set the governance and control requirements practitioners need to meet.
| Framework | Control / Reference | Relevance |
|---|---|---|
| NIST CSF 2.0 | PR.AA — Identity Management, Authentication, and Access Control | Covers consistent assurance and access governance across customer and service journeys. |
| Recommendation — Align authentication and access decisions to the risk of each journey step. | ||
| CIS Controls v8 | 5 — Account Management | Directly addresses account lifecycle, access scope, and revocation across users and services. |
| Recommendation — Centralize account governance and remove unnecessary access paths quickly. | ||
| OWASP Non-Human Identity Top 10 | NHI-01 — Secrets and Credential Management | Applies where APIs, services, and automated workflows rely on machine credentials and tokens. |
| NHI-03 — Least Privilege for Non-Human Identities | Supports limiting service and API permissions to the minimum needed for each function. | |
| Recommendation — Inventory, scope, and rotate machine credentials used in insurer integrations. Apply least privilege to service identities and API permissions. | ||
| MITRE ATT&CK | T1078 — Valid Accounts | Relevant to abuse of legitimate customer, partner, or service credentials in digital journeys. |
| Recommendation — Hunt for misuse of valid accounts across customer, partner, and service channels. | ||
Practitioner Guidance
What to prioritise: Start with the highest-risk actions, not the highest-volume ones. Claims payout changes, account recovery, contact detail updates, and partner-connected transactions usually carry more fraud value than basic account access, so they should define the first identity policy upgrades.
What to verify: Confirm that the insurer can trace every sensitive action back to a specific human, device, service, or partner identity with a clear policy decision attached. If the audit trail cannot distinguish user intent from shared or inherited access, the control model is still too loose.
Common mistake: Many teams modernise the customer login and leave machine-to-machine trust behind. That creates a false sense of progress, because the most damaging abuse often comes through APIs, workflow automation, and third-party integrations rather than the visible sign-in screen.
What good looks like: A customer can move through routine servicing with minimal interruption, while the insurer can still force stronger assurance for high-impact actions and immediately revoke risky service access without breaking the whole journey.
Practitioner takeaway: The right target is not “more identity controls” but a single decision model that preserves customer convenience while making every privileged action, automated process, and partner connection visible and governable.
Related resources from NHI Mgmt Group
- How should security teams design identity architecture for APIs, services, and applications without creating unnecessary coupling?
- Who should own the move from SMS OTPs to stronger authentication across banking and digital services?
- How should security teams unify fragmented identity security controls across SaaS and on-premises environments?
- How should organisations govern reusable digital identity across multiple services?
Deepen Your Knowledge
Reviewed and updated by the NHIMG editorial team on September 8, 2026.
NHI Mgmt Group — the #1 independent authority on Non-Human Identity, IAM, and Agentic AI security. nhimg.org
