Yubico - YubiKey 5Ci - Two-Factor Authentication Security Key, Dual Connectors for Lightning/USB-C - FIDO Certified - Black
Customers are saying
Customers express satisfaction with the YubiKey 5Ci's portability, security features, and overall performance. The dual connectors enhance connectivity, and users appreciate its broad compatibility across various devices.
Works best with a spare YubiKey
A spare YubiKey ensures easy access to your accounts even if your primary YubiKey is lost, providing security and convenience when you need it most. Your spare key can be a different form factor than your primary key, and it will still function the same, as long as both keys are from the same YubiKey series.
Convenient and portable
The YubiKey 5Ci fits easily on your keychain, making it convenient to carry and use wherever you go, ensuring secure access to your accounts at all times. Simply plug in via USB-C or Lightning to authenticate.
Versatile compatibility
Supported by Google and Microsoft accounts, password managers and hundreds of other popular services. It works with Windows, macOS, ChromeOS and Linux. Search for "Works With YubiKey" for list of compatible services.
Multi-protocol
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.
Durable and reliable
High quality design and resistant to tampering, water, and crushing. No batteries or network connectivity required, offering dependable authentication without any downtime. Securely manufactured in USA & Sweden.
- Connector Type(s)USB-C, LightningWireless ConnectivityNoneAuthentication and Cryptography ProtocolsFIDO2, FIDO U2F, PIV, OATH, OpenPGP, WebAuthn
Reviews
Rating 4.7 out of 5 stars with 29 reviews
- Portability (12)
- Security (9)
- Connectivity (5)
- Overall Performance (5)
- Compatibility (3)
Customer Images
The vast majority of our reviews come from verified purchases. Reviews from customers may include My Best Buy members, employees, and Tech Insider Network members (as tagged). Select reviewers may receive discounted products, promotional considerations or entries into drawings for honest, helpful reviews.
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Meet the YubiKey by Yubico: the ultimate hardware security key for phishing-resistant multi-factor authentication (MFA). The YubiKey requires a physical touch to authenticate, eliminating the risk of remote attacks. The YubiKey functions by combining something you know (your password) with something you have (the physical YubiKey) to add an extra layer of security. The YubiKey can also store Passkeys, which replace passwords entirely. Most cyber attacks begin with compromised account credentials, usually stolen usernames and passwords. Using a security key as two-factor authentication offers a straightforward and effective approach to safeguarding your identity, accounts and devices. Embraced by leading global brands and millions of users worldwide, the YubiKey remains a trusted choice for enhanced security. For consumers: - The highest level of phishing defense, yet easy to use, the YubiKey is your key to trust. - Works out of the box with Google, Apple ID, Facebook, X, Dropbox, password managers, and hundreds of other services. - The YubiKey works across both desktop and mobile with touch or tap-and-go authentication using USB or NFC. - Eliminate the need to reach for your phone to open an app, or memorizing and typing in a code—simply touch the YubiKey to verify and you’re in. - YubiKeys reduce the risk of unauthorized access to online accounts, emails, financial transactions, and sensitive information. For businesses: - Defend against phishing and credential theft with highest-assurance authentication. - Enhance security for users across devices, including desktop and mobile. - YubiKey hardware security keys reduce cyber risks and keep your intellectual property, customer data and financial information safe. - Works out-of-the-box with enterprise systems like Google Workspace, Microsoft Entra ID, Identity Access Managers, password managers and hundreds of other services. - Supports multiple protocols, including Smartcard/PIV and FIDO2, allowing for modern phishing-resistant authentication with device-bound passkeys. *Note that Yubico recommends having a spare key
Meet the YubiKey by Yubico: the ultimate hardware security key for phishing-resistant multi-factor authentication (MFA). The YubiKey requires a physical touch to authenticate, eliminating the risk of remote attacks. The YubiKey functions by combining something you know (your password) with something you have (the physical YubiKey) to add an extra layer of security. The YubiKey can also store Passkeys, which replace passwords entirely. Most cyber attacks begin with compromised account credentials, usually stolen usernames and passwords. Using a security key as two-factor authentication offers a straightforward and effective approach to safeguarding your identity, accounts and devices. Embraced by leading global brands and millions of users worldwide, the YubiKey remains a trusted choice for enhanced security. For consumers: - The highest level of phishing defense, yet easy to use, the YubiKey is your key to trust. - Works out of the box with Google, Apple ID, Facebook, X, Dropbox, password managers, and hundreds of other services. - The YubiKey works across both desktop and mobile with touch or tap-and-go authentication using USB or NFC. - Eliminate the need to reach for your phone to open an app, or memorizing and typing in a code—simply touch the YubiKey to verify and you’re in. - YubiKeys reduce the risk of unauthorized access to online accounts, emails, financial transactions, and sensitive information. For businesses: - Defend against phishing and credential theft with highest-assurance authentication. - Enhance security for users across devices, including desktop and mobile. - YubiKey hardware security keys reduce cyber risks and keep your intellectual property, customer data and financial information safe. - Works out-of-the-box with enterprise systems like Google Workspace, Microsoft Entra ID, Identity Access Managers, password managers and hundreds of other services. - Supports multiple protocols, including Smartcard/PIV and FIDO2, allowing for modern phishing-resistant authentication with device-bound passkeys. *Note that Yubico recommends having a spare key
Meet the YubiKey by Yubico: the ultimate hardware security key for phishing-resistant multi-factor authentication (MFA). The YubiKey requires a physical touch to authenticate, eliminating the risk of remote attacks. The YubiKey functions by combining something you know (your password) with something you have (the physical YubiKey) to add an extra layer of security. The YubiKey can also store Passkeys, which replace passwords entirely. Most cyber attacks begin with compromised account credentials, usually stolen usernames and passwords. Using a security key as two-factor authentication offers a straightforward and effective approach to safeguarding your identity, accounts and devices. Embraced by leading global brands and millions of users worldwide, the YubiKey remains a trusted choice for enhanced security. For consumers: - The highest level of phishing defense, yet easy to use, the YubiKey is your key to trust. - Works out of the box with Google, Apple ID, Facebook, X, Dropbox, password managers, and hundreds of other services. - The YubiKey works across both desktop and mobile with touch or tap-and-go authentication using USB or NFC. - Eliminate the need to reach for your phone to open an app, or memorizing and typing in a code—simply touch the YubiKey to verify and you’re in. - YubiKeys reduce the risk of unauthorized access to online accounts, emails, financial transactions, and sensitive information. For businesses: - Defend against phishing and credential theft with highest-assurance authentication. - Enhance security for users across devices, including desktop and mobile. - YubiKey hardware security keys reduce cyber risks and keep your intellectual property, customer data and financial information safe. - Works out-of-the-box with enterprise systems like Google Workspace, Microsoft Entra ID, Identity Access Managers, password managers and hundreds of other services. - Supports multiple protocols, including Smartcard/PIV and FIDO2, allowing for modern phishing-resistant authentication with device-bound passkeys. *Note that Yubico recommends having a spare key
Meet the YubiKey by Yubico: the ultimate hardware security key for phishing-resistant multi-factor authentication (MFA). The YubiKey requires a physical touch to authenticate, eliminating the risk of remote attacks. The YubiKey functions by combining something you know (your password) with something you have (the physical YubiKey) to add an extra layer of security. The YubiKey can also store Passkeys, which replace passwords entirely. Most cyber attacks begin with compromised account credentials, usually stolen usernames and passwords. Using a security key as two-factor authentication offers a straightforward and effective approach to safeguarding your identity, accounts and devices. Embraced by leading global brands and millions of users worldwide, the YubiKey remains a trusted choice for enhanced security. For consumers: - The highest level of phishing defense, yet easy to use, the YubiKey is your key to trust. - Works out of the box with Google, Apple ID, Facebook, X, Dropbox, password managers, and hundreds of other services. - The YubiKey works across both desktop and mobile with touch or tap-and-go authentication using USB or NFC. - Eliminate the need to reach for your phone to open an app, or memorizing and typing in a code—simply touch the YubiKey to verify and you’re in. - YubiKeys reduce the risk of unauthorized access to online accounts, emails, financial transactions, and sensitive information. For businesses: - Defend against phishing and credential theft with highest-assurance authentication. - Enhance security for users across devices, including desktop and mobile. - YubiKey hardware security keys reduce cyber risks and keep your intellectual property, customer data and financial information safe. - Works out-of-the-box with enterprise systems like Google Workspace, Microsoft Entra ID, Identity Access Managers, password managers and hundreds of other services. - Supports multiple protocols, including Smartcard/PIV and FIDO2, allowing for modern phishing-resistant authentication with device-bound passkeys. *Note that Yubico recommends having a spare key
| Pros for Yubico - YubiKey 5Ci - Two-Factor Authentication Security Key, Dual Connectors for Lightning/USB-C - FIDO Certified - Black | |||
|---|---|---|---|
| Security, Overall Performance, Portability, Connectivity, Compatibility | Overall Performance, Security, Ease of Use | Overall Performance, Security | Overall Performance, Security |
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