Unused Access Keys Pose Security Risk Due to Lack of Lifecycle Management

The Problem of Lingering Access Keys

Access keys for non-human identities, such as agents or automated tasks, often outlive their original purpose. For example, an IAM user's access key created for a project that has since closed, or approved by an employee who has left the company, can remain active indefinitely. Unlike human offboarding processes, there is no automatic mechanism to revoke access for finished automated tasks.

Security Implications of Unmanaged Credentials

AWS IAM user access keys do not have an automatic expiration, meaning a forgotten key stays valid until manually disabled or deleted. This creates a significant security vulnerability. The OWASP 2025 Top 10 for non-human identities identifies improper offboarding as a primary concern, emphasizing the need to retire unneeded credentials and assign accountability to others.

Attackers can exploit these exposed credentials rapidly. A GreyNoise report from September 2026 documented an AI-orchestrated campaign that achieved remote code execution in under four hours, compromising multiple organizations in seconds. While not directly using abandoned AWS IAM keys, this demonstrates the speed at which exposed access can be leveraged, making slow inventory and revocation processes dangerous.

Distinction Between VMs and Credentials

A forgotten virtual machine (VM) primarily incurs financial costs. In contrast, a forgotten credential, which is a persistent key, secret, or token provisioned for a workload, can grant unauthorized access. The core issue is that an agent's deployment identity authenticates it to a cloud account, and if its lifecycle is not governed, its access can persist beyond its utility.