Non-Human Entity

A non-human entity in cybersecurity is a digital actor that can authenticate, access systems, or perform actions without being a person. Examples include service accounts, API keys, bots, certificates, workloads, scripts, containers, and automated integrations. These entities are important because they often carry sensitive permissions and can be exploited if their credentials or access rights are unmanaged.

A non-human entity is the system, workload, automation, or technical component that performs actions. A non-human identity is the credentialed identity or access record used by that entity, such as a service account, token, certificate, or API key. In practice, security teams often manage both together because the entity, its owner, its purpose, and its permissions all affect risk.

Examples of non-human entities include service accounts, cloud workload identities, CI/CD pipeline bots, API clients, robotic process automation bots, containers, serverless functions, scripts, certificates, SSH keys, database jobs, and third-party integrations. Any automated component that can access a system, call an API, move data, or execute commands may qualify.

Non-human entities are a security risk because they often have persistent credentials, broad permissions, unclear ownership, and limited visibility. They may not follow normal employee onboarding, access review, or offboarding processes. If an attacker compromises a token, service account, or automation credential, they may gain quiet, trusted access to systems and data.

Organizations should manage non-human entity access by maintaining an inventory, assigning a business and technical owner, documenting purpose, enforcing least privilege, rotating credentials, removing unused entities, and monitoring activity. Access should be approved before use and periodically reviewed to confirm that each entity still needs its permissions.

Compliance requirements for non-human entities usually come from broader access control, identity management, logging, change management, and risk management expectations. Organizations should be able to show that non-human entities are identified, authorized, limited to appropriate access, monitored, and reviewed. Evidence may include inventories, access review records, credential rotation logs, and exception approvals.

Service accounts are one of the most common forms of non-human entity access. They are typically used by applications, scripts, jobs, or integrations to perform automated tasks. Because service accounts may have powerful permissions and no direct human user, they should have named owners, documented use cases, restricted access, and strong monitoring.

CISOs and security leaders can inventory non-human entities by collecting identity, access, and configuration data from cloud platforms, identity providers, source code repositories, CI/CD tools, databases, and SaaS applications. The inventory should include entity name, type, owner, purpose, permissions, credential age, last activity, and connected systems. Regular reconciliation helps identify orphaned, overprivileged, or stale entities.

Key controls include centralized inventory, least-privilege access, strong credential storage, secret scanning, credential rotation, short-lived tokens where possible, approval workflows, logging, anomaly detection, segregation of duties, and periodic access reviews. Organizations should also remove unused entities and avoid shared credentials that make accountability unclear.

Review frequency should be based on risk, privilege level, business criticality, and applicable compliance standards. High-risk or privileged non-human entities should be reviewed more frequently than low-risk automation accounts. At minimum, organizations should review ownership, purpose, permissions, credential age, last activity, and whether the entity is still required.