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20/08/2026 5:24 pm
TL;DR: Custom authentication increases long-term security and operational burden because teams inherit login recovery, scaling, availability, and compliance work that platform IAM already standardises, according to Ory. The governance problem is not just build cost but accumulated identity debt across authentication, lifecycle, and access-control decisions.
NHIMG editorial — based on content published by Ory: Don’t Build Your Own Auth...Here’s Why!
Questions worth separating out
Q: Why do custom authentication implementations create governance risk?
A: Custom implementations spread identity logic across multiple codebases, which makes review, testing, and incident response harder.
Q: Why do bespoke auth flows create so much hidden cost?
A: Bespoke auth flows create hidden cost because every edge case needs to be designed, tested, supported, and revisited as the product evolves.
Q: How should security teams evaluate a custom auth stack?
A: Security teams should evaluate it by asking whether it can be operated, audited, and recovered like a shared control.
Practitioner guidance
- Inventory bespoke authentication dependencies List every custom login, recovery, token, MFA, and session path in production, then classify which ones carry audit, recovery, or revocation risk.
- Map auth decisions to lifecycle controls Check how account creation, password reset, privilege change, and offboarding are handled across each application.
- Reduce duplicated identity logic Move common authentication requirements into shared IAM services where possible, especially for MFA, session management, and revocation.
What's in the full article
Ory's full blog covers the operational detail this post intentionally leaves for the source:
- Specific product and platform examples that show where custom authentication becomes operationally brittle.
- The implementation trade-offs behind recovery, session handling, and MFA when teams build auth themselves.
- The article's detailed explanation of why platform support changes the maintenance burden over time.
- The supporting context around scalability, deployment, and product-team ownership of authentication.
👉 Read Ory's analysis of why custom authentication creates hidden IAM debt →
Custom authentication: what hidden IAM debt are teams carrying?
Explore further
20/08/2026 6:14 pm
Custom authentication is identity debt, not just engineering work. The moment a team builds its own login and recovery paths, it inherits a long tail of governance obligations that platform IAM normally standardises. Those obligations include assurance, revocation, audit logging, recovery, and exception management, and they persist for the life of the product. The practical conclusion is simple: bespoke auth should be treated as a risk-bearing identity control, not a feature decision.
A few things that frame the scale:
- The average estimated time to remediate a leaked secret is 27 days, despite 75% of organisations expressing strong confidence in their secrets management capabilities, according to The State of Secrets in AppSec.
- Only 44% of developers are reported to follow security best practices for secrets management, which helps explain why application-level identity shortcuts persist.
A question worth separating out:
Q: What is the difference between built-in IAM and custom authentication?
A: Built-in IAM standardises common identity controls such as sign-in, recovery, and session handling, while custom authentication embeds those controls inside application-specific code. The difference matters because standardised IAM is easier to govern at scale, whereas bespoke auth creates more places for policy drift and control failure.
👉 Read our full editorial: Custom authentication creates hidden IAM debt and security drag
