Attestation

Attestation is a security control mechanism that involves the cryptographic verification of an entity's integrity, authenticity, and compliance with a predefined security posture. It provides a verifiable, digitally signed declaration confirming the state of a device, system, software component, or identity within an Identity & Access Management (IAM) framework. Unlike basic authentication, which only confirms who an entity claims to be, attestation validates the properties and conditions of that entity — such as boot sequence integrity, the presence of security patches, or adherence to organizational policies — before granting access or privileges.

Attestation typically relies on a secure element or trusted computing base to generate signed statements that can be independently verified by relying parties. By establishing trust through these verifiable claims, organizations can make informed, risk-based access decisions, ensuring only trusted and compliant entities interact with sensitive resources. It serves as a foundational element for enforcing policy-based access control, mitigating risks from compromised endpoints, and maintaining a strong security posture across dynamic enterprise environments.