A model where a person connects an account once and then shares that trusted connection with the organisation or approved agents. It reduces the chaos of per-agent credentials, makes offboarding simpler, and gives teams a clearer answer to who controls access. Shared connections are a practical control for scaling internal automation safely.
Expanded Definition
Shared connections describe an access pattern in which a person establishes a trusted connection once, then authorises an organisation or approved agents to use that connection under defined rules. In identity and automation contexts, this is not the same as handing over a password. The defining feature is controlled delegation: the original account holder remains the source of trust, while the organisation gains a repeatable way to operate without creating separate credentials for every agent, workflow, or integration.
Definitions vary across vendors and platform teams because the control can be implemented through delegated OAuth consent, token brokering, vault-backed session handoff, or other mediated access models. The security value is consistent even when the mechanics differ: fewer duplicated secrets, clearer revocation, and a more auditable relationship between human approval and machine use. For governance, shared connections sit between end-user consent and enterprise access control, which makes ownership and lifecycle management especially important. The most common misapplication is treating a shared connection as a reusable credential dump, which occurs when teams allow broad downstream access without explicit scope, monitoring, or revocation rules.
Examples and Use Cases
Implementing shared connections rigorously often introduces dependency on a well-governed delegation layer, requiring organisations to weigh simpler automation against tighter control over scope, monitoring, and revocation.
- A sales team connects a customer relationship account once, then approved automations use that connection to log activity, route updates, or sync records without storing separate agent passwords.
- A support organisation delegates access to a ticketing platform so an internal assistant can draft responses and retrieve context while the human owner retains approval authority.
- A finance workflow uses a shared connection to a cloud application so scheduled checks can run under a monitored, revocable session rather than long-lived static secrets.
- A platform team centralises a set of shared connections in a managed access layer so onboarding a new approved agent does not require issuing fresh credentials every time.
- An identity team reviews a shared connection after role changes and removes the approval path before the underlying account is repurposed or disabled, aligning with principles in the NIST Cybersecurity Framework 2.0.
Why It Matters for Security Teams
Shared connections matter because they can reduce credential sprawl without eliminating the need for accountability. For security teams, the main question is not whether access is shared, but whether the sharing model preserves traceability, bounded scope, and fast revocation. If those conditions are missing, the organisation may have fewer passwords but more opaque authority, which is a poor tradeoff in incident response and access governance.
This term is especially relevant where human accounts are being used to empower automation, including agentic AI systems that need practical access but should not accumulate standing privilege. Shared connections can support least privilege when the approval path, session limits, and ownership are explicit. They can also create hidden risk if a connection outlives the person who created it, or if an agent inherits more access than the task requires. The governance challenge is to keep the trust relationship visible and reversible, not merely convenient. Organisational reviews often uncover the weakness only after a user leaves, an agent misbehaves, or an investigation needs a clear access trail, at which point shared connections become operationally unavoidable to unwind.
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, NIST SP 800-53 Rev 5, NIST SP 800-63 and NIST AI RMF set the governance and control requirements practitioners need to meet.
| Framework | Control / Reference | Relevance |
|---|---|---|
| NIST CSF 2.0 | PR.AC-1 | Access control governance fits shared connection ownership and approved-use boundaries. |
| NIST SP 800-53 Rev 5 | AC-2 | Account management governs lifecycle control for delegated or shared access paths. |
| NIST SP 800-63 | Digital identity guidance informs assurance and binding of user-controlled access. | |
| OWASP Non-Human Identity Top 10 | NHI guidance covers non-human access relationships and their lifecycle risks. | |
| NIST AI RMF | AI RMF applies when shared connections enable agentic systems to act on behalf of users. |
Use strong identity binding before allowing any shared connection to authorise downstream access.
Related resources from NHI Mgmt Group
- Shared Responsibility Model
- What breaks when an AI-integrated service uses one shared credential for many third-party connections?
- Why do shared accounts create such a large security problem in higher education?
- How should teams respond to a local Linux privilege escalation flaw in shared environments?
Deepen Your Knowledge
Reviewed and updated by the NHIMG editorial team on September 2, 2026.
NHI Mgmt Group — the #1 independent authority on Non-Human Identity, IAM, and Agentic AI security. nhimg.org
