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Yubico YubiKey 5Ci - Two Factor Authentication Android/PC/iPhone Security Key, Dual Connectors for Lighting/USB-C - FIDO Certified USB Password Key, Protect Online Accounts with More Than a Password

4.4 out of 5 stars 646 ratings

Price: $114.50
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Brand Yubico
Colour Black
Material Fiberglass reinforced polymer
Item dimensions L x W x H 40 x 12 x 5 millimetres
Item weight 3 Grams

About this item

  • NEW PRODUCT with EMERGING SUPPORT - It is highly recommended to visit Yubico's website for understanding of the full capabilities of this security key before purchase.
  • DUAL CONNECTORS: The Yubico YubiKey 5Ci is the first multi-protocol hardware authenticator with dual connectors for Lighting and USB-C ports. With the lighting connector side, you can protect your iOS mobile apps and log in with just a tap.
  • COMPATIBILITY: The Yubico 5Ci features the YubiKey 5C functionality on one side that works with thousands of apps to keep accounts secure. The Lightning Connector side is leading the way in innovation and is currently compatible with a limited number of applications.
  • FIDO: The YubiKey 5Ci is FIDO certified and works with Google Chrome and any FIDO-compliant application on iOS, Windows, Mac OS or Linux. Secure your login and protect your Gmail, Facebook, Dropbox, Outlook, LastPass, Dashlane, 1Password, accounts & more.
  • MULTI-PROTOCOL SUPPORT: This YubiKey has multi-protocol support including FIDO2, FIDO U2F, Yubico OTP, OATH-TOTP, OATH-HOTP, Smart card (PIV), OpenPGP, and Challenge-Response capability to give you strong hardware-based authentication.
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  • Yubico YubiKey 5Ci - Two Factor Authentication Android/PC/iPhone Security Key, Dual Connectors for Lighting/USB-C - FIDO Cert
  • +
  • Yubico - YubiKey 5 - USB-A - Two Factor Authentication Security Key YubiKey 5 NFC
  • +
  • Yubico YubiKey 5C Nano Two Factor Authentication Security Key - Black - USB-C
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Product description

The YubiKey 5Ci combines hardware-based authentication and public key cryptography to eliminate account takeovers. The YubiKey 5Ci offers a unified secure authentication solution for modern devices. Simply insert either connector to the device of your choice and experience YubiKey authentication that’s four times faster than typing in a One Time Passcode. Register only once on the device and get recognized on any other device of your choice. And no battery or network connectivity required, so the YubiKey 5Ci is always on and accessible for authentication. The YubiKey 5Ci also delivers secure login to macOS, Android, Windows, ChromeOS and much more. -Secure your login and protect your account with hundreds of services like LastPass, Dashlane, 1Password and others. -Protect your online accounts from phishing and account takeovers. A YubiKey makes it extremely difficult to gain access or steal your most important files, pictures, emails, and financial information. -Register easily with hundreds of services. Once registered, each service will simply request you to insert and tap your YubiKey to gain access during login. Simple, convenient, and secure. -Use the same asymmetric cryptography and strong security used by individuals at 9 of the top 10 technology companies. Yubico pioneered the creation of the FIDO U2F and FIDO2 authentication protocols along with Google and Microsoft. Using the YubiKey, companies have seen zero successful phishing attempts. The YubiKey 5Ci is FIDO and FIDO2 certified. It works with Google Chrome or any FIDO-compliant application on Windows, macOS or Linux and with applications that provide FIDO, FIDO2, or one-time-password (OTP) support and through Chrome, Firefox, or Edge browsers.


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4.4 out of 5 stars
4.4 out of 5
646 global ratings

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Top reviews from Australia

Reviewed in Australia on 29 January 2021
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Reviewed in Australia on 10 February 2021
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Top reviews from other countries

B. Schmitzdorff
1.0 out of 5 stars Leider doch nicht für Schlüsselbund geeignet
Reviewed in Germany on 28 February 2020
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1.0 out of 5 stars Leider doch nicht für Schlüsselbund geeignet
Reviewed in Germany on 28 February 2020
Anders als vom Hersteller und den testenden Fachmedien beschrieben, scheint der Yubico 5Ci nicht so haltbar ausgelegt zu sein, wie man den unbedarften Käufer glauben machen möchte.
Ich habe meinen 5Ci seit Oktober 2019 am Ring des Autoschlüssels getragen. Eine größere mechanische Belastiung des Yubico 5Ci ist wissentlich bisher nicht aufgetreten. Am heutigen Morgen nahm die den 5Ci wieder einmal zur Hand und mußte feststellen, daß die Gehäuseseite zum Lightning-Anschluß vollständig weggebrochen war. Der Lightning-Anschluß funktioniert seitdem auch nicht mehr.
Interessanterweise ist die Funktionalität aber noch über USB-C abrufbar.

Fazit: Der Yubico 5Ci ist offensichtlich doch nicht so stabil gebaut, daß er sich für die Verwahrung am Schlüsselbund eignet.
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Dr. B O'Brien
1.0 out of 5 stars Lightening broke within 2 weeks, case went after 3, x2. Too fragile compared with Yubikey 5NFC
Reviewed in the United Kingdom on 11 August 2021
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1.0 out of 5 stars Lightening broke within 2 weeks, case went after 3, x2. Too fragile compared with Yubikey 5NFC
Reviewed in the United Kingdom on 11 August 2021
Lightening connector snapped off within 1 week on two separate devices. Purchased second as time-critical, same thing happened within a week. One of the remaining USB-C connectors died after 8 months leaving a useless brick. Order continues to work albeit without casing as this fell off within 2 months of purchase. Good principle but hardware/casing implementation not fit fur purpose. To think they meant to be "IP68 rated: dust tight and water submersible, I'm not sure I would be plugging one of these into mains electricity if it got wet! May have lasted if kept in bubble wrap in and never moved, but it’s designed to plug into an iPhone and be carried on keys.

Actually experience if of a fragile device needing to be in a hardened box not a keyring. Look at the two sorry items compared to the Yubikey 5 purchased same time.

Caveat Emptor!
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3 people found this helpful
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Andrew Barnes
2.0 out of 5 stars Lacking in the obvious
Reviewed in the United Kingdom on 5 February 2021
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2 people found this helpful
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Kat
5.0 out of 5 stars Secure your online life
Reviewed in the United Kingdom on 23 September 2020
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2 people found this helpful
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Amazon Customer
5.0 out of 5 stars Utmost security
Reviewed in the United Kingdom on 9 July 2021
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2 people found this helpful
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