BIO-key PortalGuard vs Deepnet DualShield: Side-by-Side Comparison (2026)

BIO-key PortalGuard

Mid-market and enterprise teams standardized on Microsoft Entra ID but tired of password fatigue should evaluate PortalGuard for its passwordless biometric authentication, which actually works across desktop login, mobile, and web portals without forcing users back to OTP as a fallback. The platform supports 16 authentication methods and integrates directly with Entra ID, so you're not ripping out identity infrastructure. The honest limitation: PortalGuard prioritizes access control over detection and response, so if your team needs deep behavioral analytics or anomaly detection built into your IAM layer, you'll need a separate investment there.

Deepnet DualShield

Mid-market and enterprise teams running on-premises Microsoft infrastructure will find Deepnet DualShield's tight Active Directory and Exchange integration hard to replicate in cloud-native platforms. The tool supports seven authentication methods including FIDO and biometrics across OWA, Outlook, RDP, and VPN without forced cloud dependency, which matters for regulated industries that can't migrate identity to SaaS. Skip this if your org is primarily cloud-hosted or needs out-of-the-box integrations beyond the Microsoft ecosystem; Deepnet's small vendor size and UK-only presence also mean longer support cycles for custom deployments.