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The YubiKey 5Ci is a physical passkey within the versatile YubiKey 5 Series, offering protection against phishing attacks for both business and individual use. It secures over 1000 accounts (including Google, Microsoft, and Apple) and allows for instant, convenient login by simply plugging the key into a device via USB-C or Lightning and tapping it, operating entirely without the need for batteries or recurring fees. A core feature of the 5 Series is its broadest support for authentication protocols, featuring modern standards like FIDO2/WebAuthn for passwordless login, alongside FIDO U2F, Smart Card (PIV), OpenPGP, and various OTP methods. It is built in Sweden to be highly durable, being waterproof and crush-resistant.
| General Information | |
| Manufacturer | Yubico |
| Manufacturer Part Number | 100930 |
| Manufacturer Website Address | https://www.yubico.com/ |
| Brand Name | Yubico |
| Product Line | YubiKey 5 |
| Product Name | YubiKey 5Ci |
| Package Type | Retail |
| Product Type | Security Token |
| Technical Information | |
| Encryption | RSA |
| Encryption | Smart card (PIV) |
| Encryption | OATH |
| Encryption | RSA 1024-bit |
| Encryption | ECC p388 |
| Encryption | brainpoolP512r1 |
| Encryption | X25519 |
| Encryption | RSA 3072 |
| Encryption | brainpoolP256r1 |
| Encryption | brainpoolP384r1 |
| Encryption | ED25519 |
| Encryption | Open PGP |
| Encryption | OTP |
| Encryption | ECC p256/ECC p384 |
| Encryption | RSA 2048-bit |
| Encryption | TOTP |
| Encryption | RSA 4096 (PGP) |
| Encryption | secp256k1 |
| Encryption | HOTP |
| Encryption | ECC p256 |
| Features | Tamper Resistant |
| Features | Crush Resistant |
| Features | Water Resistant |
| Features | Portable |
| Features | Two-factor Authentication |
| Features | Passwordless |
| Features | Durable |
| Features | Dust Resistant |
| Features | Water Proof |
| Interfaces/Ports | |
| USB | Yes |
| USB Standard | USB 2.0 Type C |
| USB Standard | USB Type C |
| Physical Characteristics | |
| Color Family | Black |
| Product Color | Black |
| Height | 0.5" |
| Width | 1.6" |
| Depth | 0.2" |
| Weight (Approximate) | 0.10 oz |
| Miscellaneous | |
| Additional Information |
Authentication Methods:
Identity & Access Management:
Social:
Cloud Storage:
Productivity & Communication:
Password Managers:
Cryptographic Specifications:
Design & Durability:
Setup instructions 1. Log in to the service you want to secure and check if it supports security keys.2. 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 to register your YubiKey by plugging it in or tapping it on your device. 4. You're now ready to use your YubiKey! Remember to register a spare key in case of loss or theft. |
| Compatibility |
Apple Products:
|
| Certifications & Standards |
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| Country of Origin | Sweden |
| Environmental Compliance | Restriction of Hazardous Substances (RoHS) |
| Environmental Compliance | Waste Electrical and Electronic Equipment Directive (WEEE) |
| Warranty | |
| Limited Warranty | 1 Year |
WARNING:: The plastic used in cable products can expose you to lead and lead components,
chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm.
For more information go to www.P65Warnings.ca.gov