Accountability should sit with both the business owner and the identity or IT governance function. Business teams can justify need, but identity teams must ensure access is visible, reviewed, and removed when the need ends. Shared accountability prevents shadow SaaS from becoming permanent.
Why This Matters for Security Teams
When business teams buy software directly, the risk is not just procurement drift. It is a governance gap that leaves access, data sharing, and integrations outside the normal identity lifecycle. SaaS often arrives with OAuth connections, service accounts, and admin roles that can persist long after the business case changes. NHI Management Group’s research on the Top 10 NHI Issues highlights that unmanaged credentials and weak visibility are recurring failure points across modern environments.
Security teams should treat direct-to-business SaaS purchases as an identity governance problem, not a purchasing exception. The business can own the need and justify the use case, but IT or identity governance must own inventory, access review, privileged connection oversight, and offboarding. That split matters because SaaS rarely behaves like a one-time purchase. It becomes a living access path into data, workflows, and sometimes downstream systems. The NIST Cybersecurity Framework 2.0 is explicit that governance and access control must be operational, not assumed.
In practice, many security teams discover a shadow SaaS estate only after a compromised account, a failed offboarding, or a surprise renewal has already created exposure.
How It Works in Practice
The cleanest model is shared accountability with clear control boundaries. Business owners should approve the business purpose, define the data classification, and confirm who needs access. Identity, IT, or security governance should then enforce how the application enters the environment, how it is connected, and how it exits. That includes discovery, approval workflows, SSO enforcement where possible, privileged admin assignment, and review of third-party connections such as OAuth grants and service accounts.
Current guidance suggests four operational steps:
- Maintain a SaaS inventory that includes owner, purpose, data types, and renewal date.
- Route new purchases through a lightweight governance review before credentials or data access are granted.
- Require periodic access certification for users, admins, and non-human connectors tied to the app.
- Trigger revocation and offboarding when the business case ends, not just when finance cancels the subscription.
This becomes especially important because SaaS often hides machine-to-machine access behind a friendly user interface. NHI Management Group research on the Ultimate Guide to NHIs – Lifecycle Processes for Managing NHIs shows why lifecycle control matters: access that is easy to create is often hard to find and harder to remove. External guidance from the NIST Cybersecurity Framework 2.0 supports this by tying governance, asset management, and access management together.
For organisations using SaaS integrations heavily, the most practical control is a single owner with dual sign-off: business approval for need, and identity approval for access and integration risk. These controls tend to break down when procurement is decentralised and SaaS admins can self-enable integrations without central logging or review.
Common Variations and Edge Cases
Tighter SaaS governance often increases friction for business teams, requiring organisations to balance speed of adoption against control consistency. That tradeoff is real, especially in fast-moving departments that rely on niche tools or short-term pilots. Best practice is evolving, but there is no universal standard for this yet. Most mature programmes use risk tiers: low-risk collaboration tools get lighter review, while apps touching customer data, finance, or privileged integrations get deeper scrutiny.
There are also edge cases where accountability gets blurred. A department may “own” the contract, while central IT owns single sign-on, and security owns incident response. In that model, the risk is not lack of ownership but fragmented ownership. The remedy is a documented RACI that names one accountable business owner and one accountable governance function. For audit and evidence trails, NHI Management Group’s Ultimate Guide to NHIs – Regulatory and Audit Perspectives is useful because auditors increasingly expect proof that SaaS access is reviewed, not merely purchased.
Where this model breaks down most often is in mergers, post-acquisition environments, and departments with standing exceptions, because inherited SaaS tools and undocumented admins make ownership assignments incomplete from day one.
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 address the attack and risk surface, while 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.1 | SaaS governance needs defined accountability and oversight. |
| NIST CSF 2.0 | PR.AC-1 | Direct purchases often bypass access approval and control. |
| OWASP Non-Human Identity Top 10 | NHI-01 | SaaS apps frequently create unmanaged non-human identities and tokens. |
Assign a named owner for each SaaS app and enforce governance review through the full lifecycle.
Related resources from NHI Mgmt Group
- How do IAM and compliance teams decide whether to buy point tools or broader governance platforms?
- How should teams govern lifecycle changes across SaaS applications?
- How should security teams connect SaaS contract review to access governance?
- What frameworks should IAM teams use for SaaS governance and access control?
