Phishing-proof cryptographic authentication devices. The only form of 2FA that provides absolute protection against real-time phishing attacks.
YubiKey 5 Series
Yubico
The gold standard for hardware authentication. FIDO2/WebAuthn, TOTP, PIV, and OpenPGP support in a single device. Used by Google, Microsoft, and US federal agencies.
Primary authentication for email, financial platforms, password manager, and critical SaaS accounts.
YubiKey 5Ci (USB-C + Lightning)
Yubico
Dual-connector YubiKey supporting both USB-C and Lightning. Required for principals using both iOS devices and modern laptops without a dongle dependency.
iPhone-compatible hardware key for securing mobile access to financial and communication accounts.
Nitrokey 3A NFC
Nitrokey
Open-source hardware, open-source firmware. For principals requiring verifiable supply chain security — the full device design is publicly auditable. NFC tap for mobile workflows.
High-security environments requiring open, auditable hardware with no closed-source components.
Feitian BioPass K26
Feitian
FIDO2 hardware key with integrated fingerprint sensor. Balances biometric convenience with hardware-level security. Fingerprint never transmitted — authentication occurs on-device.
High-frequency authentication workflows where PIN entry latency is operationally unacceptable.