YubiKey - The YubiKey is a one-time password device for secure login with two-factor authentication
DIGIPASS - DIGIPASS offers two-factor authentication solutions for mobile applications.
Nitrokey - Email Encryption. Encrypt your emails with GnuPG, OpenPGP, S/MIME or your favourite email client.
Rublon - Rublon enables your workforce to securely access your organization's networks, servers and applications via easy-to-use multi-factor authentication. Protect cloud apps, VPNs, servers, workstations, internal as well as on-premise apps.
SoloKeys - Secure login made open and easy 🔒
Myki Authenticator - Login to any account on any device with your fingerprint