For enterprises securing their most sensitive accounts

Next generation access for a secure digital world

Castle is the first meaningful improvement on multi factor authentication in over a decade. Built on battle tested MPC and secure mobile enclaves, it brings threshold approvals and enterprise policy to your most security sensitive accounts.

Learn more How it works
Okta
Entra / Azure AD
Any IdP
Castle identity MPC based, no shared secret Threshold approvals, enterprise policy
Secure mobile enclaves Real time alerts Cross border key sharing
Technical deep dive

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Architecture, threat model, and cryptographic design in depth. Reviewed and sent personally by our team.

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Integrates with Okta Microsoft Entra / Azure AD Google Workspace + any SAML / OIDC provider
01 / How it works

Authentication that goes beyond MFA

01

Enhanced authentication

Castle goes beyond MFA with advanced cryptography and MPC. Enforced threshold approvals and cross border key sharing keep 2FA secret key access limited to authorized users under enterprise policy.

02

Seamless integration

Built to Web3 security standards, Castle integrates with existing identity providers including Okta and Microsoft Entra / Azure AD, so any enterprise can instantly harden its most sensitive accounts.

03

Scalable and future ready

Like every Station70 product, Castle is fully scalable, keeping identity secure as your business grows.

02 / Capabilities

Comprehensive, user friendly authentication

Next generation MFA

Castle strengthens identity checks with MPC based multi factor authentication, adding security without complication.

Universal compatibility

Designed to work across platforms and devices, compatible with a wide range of applications including Okta and Microsoft Entra / Azure AD.

Threshold based access

Castle enforces threshold approvals, ensuring only authorized users reach 2FA keys, even for shared accounts.

Just-in-time access

Codes exist only for approved windows. No standing credentials sit on devices waiting to be stolen.

Zero re-enrollment

New device, same access. Sign in with enterprise SSO and every entitled secret appears, with no complex re-enrollment.

One-tap offboarding

A departure is a device revocation, not a rotation of every shared account. The seeds and policies never change.

03 / Assurance

Enterprise grade security, at every layer

CertifiedIndependently auditedSOC 2 Type 2, annual penetration tests, and cryptography audits.
CryptographyIndustry leadingAdvanced cryptographic techniques protect identity against the most sophisticated threats.
HardwareState of the artAWS Nitro Enclaves and HSM technology create a hardened trusted execution environment.
ArchitectureZero knowledgeSecrets stay in zero knowledge storage. Access is governed by cryptographically enforced quorums you configure.

Sample attestation reports and full certification documents are available at trust.station70.com.

Visit trust center
FAQ

Common questions

Anything else, get in touch at [email protected]

Standard MFA relies on a shared secret that can be phished or extracted. Castle replaces it with MPC, so no single party ever holds the full 2FA key, and access is controlled by your policy.

No. Castle layers on top of your existing IdP, including Okta and Microsoft Entra / Azure AD, hardening your most sensitive accounts without ripping out what you already run.
Resources

Where Castle fits in your identity stack

How Castle compares to Duo and Authy, and why it runs alongside your workforce MFA, not instead of it.

See the comparison
Talk to our team

Harden your most sensitive accounts with Castle

A technical briefing with our security and solutions team. Architecture walkthrough, policy design, and integration mapping for your identity stack.

Learn more Visit trust center