ACME Device Attestation - 2026 Pricing, Features, Reviews & Alternatives

Smallstep Device Identity Platform is a security software solution that provides hardware-bound credentials for enterprise devices and enables organizations to implement Zero Trust architecture. The platform secures access to sensitive resources including Wi-Fi networks, virtual private networks, Zero Trust Network Access, software as a service applications, cloud application programming interfaces, and critical infrastructure by ensuring only company-owned devices can gain access. The solution is designed for enterprise information technology teams, DevOps professionals, and security architects across industries such as financial services, social technology, and media. The platform addresses the device identity gap present in many security infrastructures.

The platform leverages ACME Device Attestation, a standard co-developed with Google at the Internet Engineering Task Force, and represents an advancement over legacy solutions such as the Simple Certificate Enrollment Protocol. The solution uses hardware co-processors for attestation and key binding to create a unique device fingerprint that prevents credential exfiltration, phishing, and impersonation attacks. The platform supports multiple operating systems and functions natively on macOS, Windows, and Linux to ensure consistent and secure cross-platform access. It includes device management features that allow administrators to track managed devices, identify pending approvals, flag devices that require attention, and maintain visibility of ownership assignments.

Smallstep Device Identity Platform integrates with more than one hundred technologies and systems commonly found in enterprise environments. The platform works seamlessly with existing identity providers, networking infrastructures, cloud services, and security tools to build a cohesive security ecosystem. The platform extends verification beyond users to include devices and applications, enabling comprehensive Zero Trust architecture that addresses security challenges introduced by remote work and cloud adoption. Application programming interfaces and integration points allow the solution to operate within complex information technology environments without disrupting established workflows or requiring extensive infrastructure changes.

Access credentials are bound directly to device silicon to provide strong assurance of authentic device identity and enhance organizational security posture. Device and application verification combines with user authentication in a unified workflow to defend against sophisticated threats. The platform aligns with established security and compliance standards to maintain audit readiness and governance in dynamic infrastructure environments.