The Alarming Rise of Non-Human Identities: A New Frontier in Security Vulnerabilities

Apr 09, 2025
Secrets Management / DevOps

The 2025 GitGuardian State of Secrets Sprawl report highlights the critical issue of secrets exposure in contemporary software environments. A key driver of this concern is the explosive growth of non-human identities (NHIs), which have consistently outnumbered human users for several years. It’s imperative that we proactively implement security measures and governance for these machine identities, as their ongoing deployment poses unprecedented security risks.

In 2024 alone, a staggering 23.77 million new secrets were leaked on GitHub—a 25% increase from the previous year. This dramatic surge underscores how the rapid proliferation of NHIs, including service accounts, microservices, and AI agents, is significantly expanding the attack surface for cyber threats.

The NHI Security Challenge

Within DevOps environments, non-human identity secrets, such as API keys and service accounts, now surpass human identities by a ratio of at least 45-to-1, fundamentally altering the security landscape.

Surge in Non-Human Identities Uncovers Significant Security Risks

April 9, 2025

In a striking revelation, GitGuardian’s 2025 State of Secrets Sprawl report has illuminated the concerning growth of secrets exposure within contemporary software landscapes. Central to this issue is the rapid proliferation of non-human identities (NHIs), which have increasingly outstripped human users. This shift necessitates preemptive security measures and governance tailored to these machine identities, which pose unprecedented security vulnerabilities.

The report indicates that over 23.77 million new secrets were disclosed on GitHub in 2024 alone, marking a staggering 25% increase compared to the previous year. This surge underscores a critical trend: the expansion of NHIs—comprising service accounts, microservices, and artificial intelligence agents—enlarges the attack surface for potential cyber threats.

The phenomenon of NHIs is particularly alarming; machine-generated credentials, including API keys and Kubernetes workers, now exceed human identities by a ratio of at least 45-to-1 in DevOps environments. This overwhelming dominance underscores an urgent need for organizations to reevaluate their security postures. As these machine identities proliferate, safeguarding sensitive information becomes an increasingly complex challenge.

The implications of this identity crisis extend far beyond mere numbers. The advent of NHIs has fundamentally altered the cybersecurity landscape, providing an array of new vectors for malicious actors. The lack of stringent oversight and governance related to these identities leaves organizations exposed to myriad threats, from unauthorized access to critical systems to the potential for data breaches.

In light of these revelations, stakeholders must consider how the MITRE ATT&CK framework applies to potential attacks involving non-human identities. Tactics such as initial access and persistence are critical in understanding the vectors that adversaries may exploit. For instance, initial access may be gained through compromised API keys, leading to further infiltration if left unchecked.

Moreover, privilege escalation techniques could enable attackers to gain unauthorized control over essential systems, effectively leveraging machine identities to navigate through an organization’s defenses. The intertwining of human and non-human identities necessitates a comprehensive approach to security, focusing not only on traditional safeguards but also on mechanisms to validate and monitor machine-generated credentials.

As organizations adapt to this evolving landscape, the importance of proactive measures cannot be overstated. Businesses must prioritize the establishment of robust governance frameworks that account for the unique challenges posed by NHIs. This includes implementing thorough monitoring practices, conducting regular audits of machine credentials, and ensuring that security protocols are updated to reflect the current threat environment.

In conclusion, the explosive growth of non-human identities presents significant security blind spots that could have far-reaching consequences. As the lines between human and machine identities continue to blur, organizations must act decisively to fortify their defenses against emerging cyber threats. The insights provided in GitGuardian’s report serve as a crucial reminder of the importance of vigilance and adaptability in the face of an ever-changing cybersecurity landscape.

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