AuthenTrend produces a family of hardware security keys (ATKey) that implement FIDO2-certified, device-bound biometric authentication. The product line includes form factors such as USB keys and NFC-enabled smart cards (e.g., ATKey.Pro, ATKey.Card NFC, ATKey.Badge), allowing use across USB, NFC, and Smart Card interfaces. Authentication is biometric-first, relying on fingerprint matching stored entirely on the hardware device. Biometric data and passkeys never leave the device and no internet connection is required for operation. This eliminates the need for passwords, PINs, and OTP codes. The ATKey family is certified against several security standards including FIDO2, NIST SP 800-73-5, IAL2/IAL3, AAL3, and FIPS 201. These credentials are intended to provide resistance to phishing, social engineering, SIM swapping, and spoofing attacks. Target industries include healthcare (HIPAA compliance), manufacturing (shop-floor access), legal (client confidentiality), and retail (POS system protection). ATKey.Badge is a newer release that extends ATKey.Card NFC compatibility, combining physical identification with authentication functionality in a badge form factor.