Notifications
Clear all
Topic starter
11/08/2026 3:19 pm
TL;DR: Aging homegrown IAM platforms are increasingly failing under modern lifecycle, provisioning, and hybrid integration demands, according to Fischer Identity. The core problem is not that legacy systems never worked, but that institutional complexity now outstrips fragile scripts, batch jobs, and disconnected tools.
NHIMG editorial — based on content published by Fischer Identity: When the Homegrown IAM System Finally Starts Holding the Institution Back
Questions worth separating out
Q: How should organisations handle homegrown IAM systems that still power core identity workflows?
A: Treat them as transition-risk assets, not permanent architecture.
Q: Why do legacy IAM platforms become riskier as institutions get more complex?
A: Because complexity multiplies exception handling.
Q: What breaks when provisioning and deprovisioning rely on scheduled jobs?
A: Access can remain active after eligibility changes, and new users can wait longer than policy allows before they receive the access they need.
Practitioner guidance
- Catalogue every homegrown lifecycle rule Document the exact onboarding, role change, and offboarding logic currently trapped in scripts, batch jobs, and manual workarounds so you can see where governance depends on custom code.
- Measure identity enforcement lag Track the time between a change in eligibility and the actual revocation or grant of access across core systems.
- Reduce dependence on tribal knowledge Require at least two administrators to understand each critical IAM workflow, then move the process into documented configuration and policy-managed logic wherever possible.
What's in the full article
Fischer Identity's full post covers the operational detail this post intentionally leaves for the source:
- How the platform structures account claim, provisioning, and deprovisioning workflows across complex institutional populations
- Specific identity lifecycle scenarios for students, employees, faculty, contractors, alumni, and affiliates
- Configuration approaches that reduce reliance on custom code and fragile batch jobs
- Implementation detail for hybrid integration across cloud systems, directories, ERP platforms, and legacy applications
👉 Read Fischer Identity's analysis of why homegrown IAM systems are holding institutions back →
Homegrown IAM systems: when does custom identity stop scaling?
Explore further
11/08/2026 3:31 pm
Custom IAM becomes a governance liability once lifecycle logic is embedded in fragile code. The article’s central point is not that homegrown systems never worked, but that their original design assumptions no longer match institutional identity complexity. When lifecycle decisions live in scripts, scheduled jobs, and tribal knowledge, the organisation loses repeatability and evidence quality. That is a governance failure before it is a tooling problem, and practitioners should treat the system as a control risk, not just an aging application.
A few things that frame the scale:
- 88.5% of organisations acknowledge that their non-human IAM practices lag behind or are merely on par with their human identity and access management efforts, according to The 2024 Non-Human Identity Security Report.
- Only 19.6% of security professionals express strong confidence in their organisation's ability to securely manage non-human workload identities, which shows how wide the governance gap remains.
A question worth separating out:
Q: Who is accountable when a homegrown IAM process fails an audit or leaves access active too long?
A: The accountable owner is the identity and access governance function, even when the failure originated in custom code or an inherited script. Frameworks such as the NIST Cybersecurity Framework expect organisations to assign ownership, document controls, and maintain evidence for access decisions.
👉 Read our full editorial: Homegrown IAM is becoming a liability in complex institutions
