What is a YubiKey?

A YubiKey is a small hardware authentication device (about the size of a car key fob or a USB stick) that adds a physical layer of security to your logins. So instead of typing a code from a text message or authenticator app, you simply just plug in or tap the YubiKey. The device then proves your identity by using cryptography that attackers cannot trick or otherwise phish. Think of it like a house key, but for your online life.

YubiKeys are built by Yubico and are widely used to protect online accounts, business systems, and sensitive data. They work with major services like Google, Microsoft, GitHub, and many enterprise platforms.

What is the primary purpose of a YubiKey?

The main purpose of a YubiKey is to add an extra layer of security that a hacker can’t steal over the internet. Passwords can be guessed, stolen, or leaked, but a YubiKey requires you to have the physical device in hand. This makes it one of the strongest ways to stop account takeovers and secure personal or work data. YubiKeys are part of a broader category of authentication methods that combine something you know (like a password) with something you have (the physical key).

How does a YubiKey work in practice?

Imagine you want to log in to your Gmail account. Normally, you would type your password and maybe get a text message with a code. That text could be intercepted or faked by hackers.

With a YubiKey, the process is much simpler and more secure:

1. You go to the Gmail login page and enter your username and password.
2. Instead of typing in a code, Gmail asks for your security key.
3. You plug the YubiKey into your laptop’s USB port or tap it against your phone.
4. The YubiKey instantly confirms it is really you, and you are logged in.

From your side, it only takes a few seconds. From the hacker’s side, it is nearly impossible to break in without physically holding your key.

This same process works across many services like Microsoft 365, GitHub, Dropbox, and even password managers. For businesses, YubiKeys are often required to access sensitive apps like payroll systems or HR platforms, adding strong protection without making employees’ lives harder.

What are the different types of YubiKeys?

YubiKeys come in different models to work with various devices. They all serve the same purpose: proving it is really you logging in, but the way you connect the key to your device can differ.

Most YubiKeys support multiple login methods:

• One-time passwords (OTP): Generates a unique code when tapped
• FIDO2/WebAuthn: Enables passwordless login
• U2F (Universal 2nd Factor): Adds a strong second factor to accounts
• Smart card functionality: Used in some workplaces for advanced security

In practice, you just connect or tap the key during login, and it instantly verifies your identity.

See also: The Most Popular IT Products for Every Team in 2025

What are the advantages of a YubiKey?

A YubiKey makes online security both stronger and simpler. Some of the main benefits include:

• Stronger security: Protects against phishing, stolen passwords, and account takeovers
• Easy to use: Plug in or tap the key to log in instead of typing codes
• Widely supported: Works with Google, Microsoft, GitHub, Dropbox, password managers, and more
• Durable: Water resistant, crush resistant, and designed to last for years
• Up to date: Supports modern standards like passwordless login (FIDO2/WebAuthn), U2F, OTP, and smart card functions

What are the disadvantages of a YubiKey?

While YubiKeys are highly secure, they are not perfect. Common drawbacks include:

• Cost: Prices usually range from $25 to $80, which is more than free app-based authentication
• Loss or damage: If the key is lost, stolen, or broken, you need a backup way to log in
• Limited support: Not every website or service accepts YubiKeys
• Learning curve: Some people may need help setting up and getting used to the device
• Extra planning: Many users buy a second YubiKey as a backup, which adds to the cost

How does a YubiKey improve security compared to traditional password-only systems?

Passwords can be secure if they are long, unique, and well-managed. In practice, though, many people reuse them, choose short or simple ones, or fall victim to phishing attacks and data breaches. Once a password is exposed, attackers can often gain access remotely.

A YubiKey adds a second layer: a physical key. Even if a password is compromised, an attacker still cannot log in without the actual device. This requirement makes remote attacks far less likely to succeed.

It also blocks common techniques. Keyloggers may capture what you type, but they cannot copy the YubiKey. Phishing sites may trick you into entering a password, but they cannot fake the presence of the physical key.

The result is stronger authentication: your account is protected not only by something you know (the password) but also by something you physically own (the YubiKey).

See also: 11 Best Identity and Access Management Tools

How much does a YubiKey cost?

Most YubiKeys cost between $25 and $80 (USD) depending on the model and features. Basic models are on the lower end, while advanced versions with multiple connection types (USB-C, NFC, Lightning) are more expensive. Enterprise buyers often get discounts for bulk orders.

Can I buy my own YubiKey?

Yes. You can purchase a YubiKey directly from the official Yubico store, through Amazon, or from authorized resellers (including Deel). Many individuals buy their own keys to secure personal accounts, while companies often provide them to employees as part of workplace security.

How long will a YubiKey last?

A YubiKey is designed to last for years. It has no battery and no moving parts, making it highly durable. Most users can expect at least 5–10 years of use, depending on how often it is handled. Many organizations issue backup keys so employees always have a replacement if one is lost or damaged.

How does YubiKey fit into remote work and global hiring practices?

Remote and distributed teams need secure access to company endpoints no matter where they are. Traditional methods like SMS codes can be unreliable across borders and are vulnerable to phishing. A YubiKey solves this by giving employees a physical key that works the same way everywhere.

For global hiring, this consistency is critical. YubiKeys:

• Ensure every employee, regardless of country or time zone, uses the same strong login method
• Protect sensitive platforms such as HR, payroll, and collaboration tools from unauthorized access
• Reduce the chance of account takeovers when workers log in from personal devices or public networks

Secure your team with YubiKeys through Deel IT

If your company is looking to strengthen account security, Deel IT can supply employees with hardware keys as part of your global IT setup. Our offering includes the YubiKey 5C NFC and YubiKey 5 NFC FIPS, two models trusted for enterprise-grade authentication.

With Deel IT, you can:

• Order YubiKeys together with laptops and other essential devices
• Ship them to employees anywhere in the world
• Manage provisioning, repairs, and recovery from a single platform

Deel IT simplifies global IT operations by combining procurement, compliance, and 24/7 support in one system. That means your workforce gets secure, ready-to-use devices from day one, without extra admin work on your side.

Schedule a demo with Deel IT to see how easy it is to equip your team with YubiKeys and other critical IT assets.