PortalGuard
PortalGuard (by BIO-key) is an IAM platform for standards-based SSO, MFA (including Identity-Bound Biometrics), and desktop login MFA on Windows/macOS. It supports SAML 2.0, OpenID Connect 1.0, OAuth 2.0, and CAS 3.x, can enforce Kerberos/IWA “true SSO” on domain-joined devices, and is available as both IDaaS (cloud) and on-premises software. BIO-key acquired PortalGuard (PistolStar) in 2020.
Key Capabilities
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Standards-based federation: Delivers SSO to SaaS and on-prem apps using SAML 2.0, OpenID Connect 1.0, OAuth 2.0, and CAS 3.x.
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Kerberos/IWA support: Enables “true SSO” on domain-joined workstations to eliminate repeated prompts, with optional MFA for step-up access.
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MFA breadth & biometrics: Provides Identity-Bound Biometrics (facial/palm/voice via MobileAuth and BIO-key hardware), plus FIDO2/WebAuthn security keys and traditional OTP/push factors.
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Desktop login MFA: Enforces MFA at the Windows/macOS login screen for local sessions, RDP, and server access via PortalGuard Desktop.
Limitations
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SCIM provisioning: Public materials do not document a general-purpose SCIM 2.0 provider/consumer interface; confirm SCIM roles before planning lifecycle integrations.
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Advanced OAuth profiles: Documentation emphasizes core OAuth/OIDC; support for PAR, DPoP, or mTLS/FAPI is not clearly confirmed.
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Endpoint agent dependency: Desktop MFA relies on deploying PortalGuard Desktop components to managed endpoints.
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Biometric enrollment posture: IBB/MobileAuth introduces device and user enrollment workflows and may require BIO-key hardware for certain factors.