What is Non-Human Identity (NHI)?

Non-Human Identity (NHI) is a digital identity assigned to a machine, application, service, workload, script, API, or automation process instead of a human user. Organizations use Non-Human Identity (NHI) to let systems authenticate, access resources, and perform tasks without manual user action. These identities are critical for cloud services, DevOps pipelines, integrations, and automated workflows, but they can create serious security risks when credentials, permissions, or lifecycle controls are poorly managed.

Why do organizations use NHIs?

Modern IT environments rely on automated communication between systems. Applications connect to databases, APIs call cloud services, workloads access storage, and scripts perform administrative tasks.

Organizations use NHIs to:

• Enable service-to-service authentication
• Support automated workflows
• Connect applications and APIs
• Allow workloads to access cloud resources
• Run scripts, bots, and background services

These identities help systems operate continuously, but they also expand the identity attack surface.

How does Non-Human Identity work?

An NHI proves that a non-human entity can access a system or resource. Instead of using a person’s login session, it typically relies on credentials or identity objects assigned to software or infrastructure.

Common authentication methods include:

• API keys
• Access tokens
• Service accounts
• Certificates
• Cloud roles
• Secrets used by applications

Security teams must track where these identities exist, what they can access, who owns them, and when they should expire or rotate.

What are common NHI examples?

NHIs appear across cloud, enterprise, development, and security environments. Many teams create them during application deployment, system integration, automation, or third-party service setup.

These examples show why NHI security requires both identity governance and credential lifecycle management.

What risks affect Non-Human Identity security?

NHIs often operate silently in the background. If teams fail to monitor them, attackers may misuse compromised credentials without triggering the same signals as human account abuse.

Common risks include:

• Hardcoded secrets
• Long-lived credentials
• Overprivileged access
• Poor offboarding
• Identity reuse across environments
• Weak monitoring and ownership

These issues can allow unauthorized access to applications, cloud resources, production data, or internal services.

How can organizations manage NHIs securely?

NHI security starts with visibility. Teams need an inventory of machine identities, their owners, privileges, credentials, and usage patterns.

Important practices include:

• Assign clear ownership
• Use the least privilege access
• Rotate secrets regularly
• Avoid hardcoded credentials
• Separate development and production identities
• Monitor unusual access behavior
• Remove identities that no longer serve a purpose

This helps organizations reduce identity sprawl and limit the impact of compromised machine credentials.

Supporting secure identity operations with Hexnode

NHI security does not stop at machine credentials. Teams also need control over the endpoints where scripts, certificates, access tokens, and administrative workflows operate.

Hexnode can support this device-side security layer through:

• Endpoint compliance monitoring
• Security policy enforcement
• Certificate configuration support
• Access-related device settings
• Centralized visibility into managed endpoints
• Device-level context during security investigations

These controls help security teams strengthen the endpoint environment around non-human identity usage and reduce operational blind spots.