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YubiKey 5 FIPS Series
The first FIPS validated FIDO2/WebAuthn, multi-protocol authenticator lineup
Strong phishing resistant MFA for the AI age — in six small and durable form factors
Phishing-resistant MFA
Defeating AI-driven identity attacks
In an age of deepfakes and digital deception, hardware keys provide the only unphishable anchor for identity security, neutralizing AI threats through physical, hardware-attested proof of presence.
The YubiKey stores the authentication secret on a secure element hardware chip. This secret is never transmitted and therefore cannot be copied or stolen.
The YubiKey 5 FIPS Series lineup makes it easy to deploy strong, scalable authentication that eliminates account takeovers from phishing attacks. The YubiKey combines hardware-based authentication and public key cryptography to ensure strong authentication and eliminate account takeovers.
FIPS 140-3 validated
Protect your organization with the FIPS 140-3 Overall Levels 1 and 2, Physical Security Level 3 validated version of the industry leading YubiKey multi-factor authentication solution.
Available in a choice of six form factors
Available in a choice of six form factors that enable users to connect via USB-A, USB-C, NFC and Lightning. The YubiKey 5 NFC FIPS, YubiKey 5C NFC FIPS, YubiKey 5Ci FIPS and YubiKey 5C FIPS conveniently fit on a keyring, while the YubiKey 5 Nano FIPS and YubiKey 5C Nano FIPS are designed to remain in the USB port. This ensures every YubiKey is easy to access and provides the same level of digital security.
Full-size keys
YubiKey 5 NFC FIPS
USB-A, Near Field Communication (NFC)
YubiKey 5C NFC FIPS
USB-C, Near Field Communication (NFC)
YubiKey 5Ci FIPS
USB-C, Lightning
YubiKey 5C FIPS
USB-C
Nano keys
YubiKey 5 Nano FIPS
USB-A
YubiKey 5C Nano FIPS
USB-C
5 NFC FIPS
5C NFC FIPS
5Ci FIPS
5C FIPS
5 Nano FIPS
5C Nano FIPS
YubiKey 5 NFC FIPS
Connectors
USB-A 2.0 plus NFC (ISO 14443-3 Type A)
Dimensions
18 x 45 x 3.3 mm · 3 g
Conveniently fits on a keyring. Crush-resistant and water-resistant. Water/dust resistance (IP68)
YubiKey 5C NFC FIPS
Connectors
USB-C 2.0 plus NFC (ISO 14443-3 Type A)
Dimensions
18 x 45 x 3.7 mm · 4.1 g
Conveniently fits on a keyring. Water/dust resistance (IP68)
YubiKey 5Ci FIPS
Connectors
USB-C 2.0 and Lightning (dual-headed)
Dimensions
12 x 40.3 x 5 mm · 2.9 g
Conveniently fits on a keyring. NFC. Water/dust resistance (IP68).
YubiKey 5C FIPS
Connectors
USB-C 2.0
Dimensions
12.5 x 29.5 x 5 mm · 2 g
Conveniently fits on a keyring. No NFC. Water/dust resistance (IP68).
YubiKey 5 Nano FIPS
Connectors
USB-A 2.0
Dimensions
12 x 13 x 3.1 mm · 2.9 g
Designed to remain in the USB port. Crush-resistant and water-resistant. Water/dust resistance (IP68).
YubiKey 5C Nano FIPS
Connectors
USB-C 2.0
Dimensions
12 x 10.1 x 7 mm · 1 g
Designed to remain in the USB port. No NFC. Water/dust resistance (IP68).
Multi-protocol Support
YubiKey 5 Series is the most versatile security key supporting multiple authentication protocols including FIDO2/WebAuthn (hardware bound passkey), FIDO U2F, Yubico OTP, OATH-TOTP, OATH-HOTP, Smart card (PIV) and OpenPGP. A single key can access several modern and legacy systems, which eliminates the need for separate keys or extra integration work.
FIDO2 / WebAuthn
Supports passwordless secure login with FIDO2/WebAuthn authentication. Can store up to 100 hardware bound passkeys.
Smart Card (PIV)
Includes Smart Card functionality based on the PIV interface specified in NIST SP 800-73. Supports passwordless secure login with Smart Card.
OpenPGP
Supports OpenPGP, offering hardware-bound RSA/ECC cryptography and strict PIN enforcement for unphishable enterprise protection.
OATH-TOTP & OATH-HOTP
Can securely store 64 OATH-TOTP/HOTP credentials on-device, offering hardware-backed, phishing-resistant one-time passcodes compatible with the Yubico Authenticator app.
Yubico OTP
Supports two programmable slots for Yubico OTP, generating encrypted, 128-bit one-time passcodes with a simple touch for software-free enterprise authentication.
Challenge-Response & Static Password
Provides secure Challenge-Response and Static Password functionality, letting users instantly authenticate or fill passwords with a simple, software-free physical touch.
Easy to use, fast, and reliable
Users don't need to install anything — customers or employees simply register their own YubiKey, enter their username and password as usual, and plug in and tap the YubiKey when prompted.
YubiKey hardware is reliable because it does not require a battery or network connectivity, so it's always on and accessible.
Authentication is fast with a simple touch that is four times faster than SMS and mobile two-factor authentication.
Durable Design
High quality design and resistant to tampering, water, and crushing. The YubiKey 5 NFC FIPS / 5 Nano FIPS are crush-resistant and water-resistant.
IP68
Water/dust resistance
25 N·m
Crush resistance
100,000+
USB insertion cycles
100+ years
Mean Time Between Failure (MTBF)
Wherever you keep it, it just works
On your keyring
Full-size models take a keyring loop, so the key travels with the things you already never leave behind.
Left in the port
Nano models sit almost flush and are designed to stay put in a desktop or docked laptop.
Smaller than a coin
The 5C Nano FIPS measures 12 x 10.1 x 7 mm and weighs a single gram.
Tapped on a phone
NFC models authenticate on NFC-enabled Android and iOS devices with a tap - no cable required.
Easy to Set Up
1
Log in to the service
Log in to the service you want to secure and check if it supports security keys.
2
Open security settings
Go to the security settings and look for the option to add two-factor authentication or security keys. Setup instructions may vary.
3
Follow the instructions
Follow the instructions to register your YubiKey by plugging it in or tapping it on your device.
4
You're ready to use your YubiKey
Remember to register a spare key in case of loss or theft of your primary key.
Wide Compatibility
Platforms
Works across major operating systems including Microsoft Windows, macOS, Android and Linux, as well as leading browsers.
Services and identity providers
Facebook, Twitter, Google Account, Microsoft account, Salesforce.com, Dropbox, Keeper®, 1Password, Bitwarden Premium, AWS Identity and Access Management (IAM), Duo Security, Forgerock, Idaptive, Microsoft Azure AD, Okta, OneLogin, Ping Identity.