Why Non-Human Identities Are Cybersecurity’s Most Overlooked Threat

Published: April 25, 2025
Category: Secrets Management / DevOps

When discussing identity in cybersecurity, people typically think of usernames, passwords, and the occasional multi-factor authentication prompt. However, an escalating threat lies beneath the surface, rooted in Non-Human Identities (NHIs). While security teams often equate NHIs with Service Accounts, the reality is much broader. NHIs encompass Service Principals, Snowflake Roles, IAM Roles, and platform-specific constructs across AWS, Azure, GCP, and beyond. The variability of NHIs reflects the diversity within modern tech stacks, making effective management essential.

The true risk associated with NHIs stems from their authentication methods.

Secrets: The Currency of Machines
Non-Human Identities primarily rely on secrets—API keys, tokens, certificates, and other credentials—that provide access to systems, data, and critical infrastructure.

The Rising Threat of Non-Human Identities in Cybersecurity

In today’s cybersecurity landscape, discussions surrounding identity often center on traditional human elements such as usernames, passwords, and multi-factor authentication (MFA). However, a significant and escalating risk currently lurks beneath this familiar terrain in the form of Non-Human Identities (NHIs). This burgeoning issue extends far beyond the commonly recognized service accounts that most security teams focus on.

NHIs encompass a diverse array of identities, including Service Principals, Snowflake Roles, IAM Roles, and platform-specific constructs from major cloud providers like AWS, Azure, and Google Cloud Platform. This diversity mirrors the complexity of the modern technology stack, underscoring the imperative for security teams to develop a nuanced understanding of how to manage these identities effectively.

One of the most pressing concerns regarding NHIs is their method of authentication. Unlike human identities, which typically rely on password-based mechanisms, NHIs often authenticate through API keys, tokens, certificates, and other types of credentials. These secrets act as the currency of automated operations, granting machines access to critical systems and sensitive data. As reliance on automation and cloud services continues to grow, so too does the potential for malicious entities to exploit poorly managed NHIs.

Recent data breaches have illustrated the dangers posed by insufficiently protected NHIs. Compromises in these identities can lead to unauthorized access and manipulation of sensitive information or even entire infrastructures. As cybercriminals develop more sophisticated strategies, it is crucial for organizations to recognize the unique vulnerabilities associated with NHIs and implement robust security measures to protect them.

The implications of NHI vulnerabilities extend beyond mere operational concerns. The ramifications can be profound, potentially exposing organizations to breaches that threaten customer trust and regulatory compliance. A strategic approach to managing NHIs involves understanding not only their diversity but also the tactics adversaries may employ to exploit them.

Analyzing these threats through the lens of the MITRE ATT&CK framework can offer valuable insights. Techniques such as initial access, persistence, and privilege escalation may be relevant to understanding how NHIs can be compromised. For instance, attackers could potentially use stolen API keys to gain initial access, leveraging elevated privileges to maintain a foothold within a network.

As the cybersecurity landscape continues to evolve, the growing prevalence of NHIs calls for a reevaluation of existing security practices. Organizations must prioritize the identification, management, and protection of these identities to mitigate risks. By fostering a comprehensive understanding of NHIs and their potential vulnerabilities, businesses can work towards fortifying their defenses against the ever-evolving threat landscape.

The conversation around cybersecurity needs to expand beyond human-centric identities to include the critical, often overlooked, world of Non-Human Identities. In doing so, organizations can better equip themselves to face both current and emerging challenges in a rapidly digitizing world.

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