Yubikey — Authentication device

YubiKey — is a small hardware key that provides additional protection when logging into accounts. It supports various authentication methods, from two-factor to completely password-free. To confirm login, simply touch the device once, and it will grant access to the necessary services and systems.

The key does not store passwords on the device and does not connect to the internet, which makes it isolated from external attacks. Even if an attacker gains access to the computer, the data on the key remains inaccessible: the key uses built-in encryption and does not function as a storage device or password generator that can be copied.

In this article, we will explain what YubiKey is, where it is used, and how it works.

Source: Yubico.com

How does YubiKey work?

YubiKey functions as a hardware code generator. It resembles a standard authenticator, but requires a physical connection. To confirm login, the user inserts the key into a USB port (or holds it near an NFC reader, if the model supports it) and presses the device button. At that moment, YubiKey generates a one-time password and automatically transmits it to your computer or smartphone — just as if you had entered the code manually from the keyboard.

The unique set of characters received by the service is used to verify the user and confirm their actions. This approach is more convenient, as it eliminates the need to enter codes manually, and is more secure. YubiKey generates long and cryptographically strong combinations, which significantly increases account security.

Source: It.slac

How to set up Yubikey?

To start working with YubiKey, you need to link it to your account — the process is similar to connecting regular two-factor authentication through apps such as Google Authenticator, only faster and easier.

Quick setup guide:

1. Open the security section in a service that supports hardware keys and select “Add security key.”

2. Connect the YubiKey to the USB port of your computer, laptop, or smartphone. Then tap the button on the device to confirm that the action is being performed by a real user, not a program or an attacker. The YubiKey will automatically enter a one-time code.

3. Complete the procedure by confirming your login or clicking the registration button in the settings.

Once you have completed all the steps, the device will be ready to use. As soon as you connect the YubiKey, two-factor authentication will be set up automatically. The process may vary slightly on different platforms, but if you follow this guide, you should have no problems.

In addition, users note in their reviews that YubiKey can be used for more than just protecting accounts on exchanges. Setup for other services is similar, making the device a versatile security tool.

Two-factor authentication (2FA) is a security method that helps protect your digital assets and personal accounts.

Where YubiKey is used

YubiKey is used in a wide variety of areas, providing a high level of protection where security is particularly important:

1. Protecting online accounts. One of the most common uses is to enhance security when logging into email services, social networks, personal accounts, and other web platforms. The hardware key adds an extra layer of verification and prevents unauthorized access.

2. Corporate systems and work networks. Many companies use YubiKey as part of their comprehensive security measures. It is compatible with one-time code systems and other authentication methods, helping to restrict access to important data and internal resources.

3. Financial transactions and online payments. Physical confirmation of actions makes transactions much more secure. Using YubiKey reduces the risk of theft and protects accounts from attackers.

4. Passwordless login. The device can completely replace traditional passwords. Users no longer need to remember complex combinations — just plug in the YubiKey to access services and applications.

Cost

We have already looked at how YubiKey works and what its limitations are, so now we can move on to another important aspect — the price. Many users in their reviews do indeed cite the price as a drawback, and not without reason.

The current prices for YubiKey 5C NFC are as follows:

1. 1 device — $55;

2. A batch of 50 devices — $2750.

Thus, when purchasing several dozen keys, the price becomes significantly more affordable, but for many users, the initial cost of a single device is still considerable.

Source: Yubico.com

Why YubiKey is so important

1. Secure storage of login data. A hardware key keeps your credentials isolated from your computer and software, reducing the risk of theft.

2. Complex access keys. YubiKey generates long and robust combinations that are much more difficult to crack than conventional passwords.

3. High level of protection. The device effectively counteracts phishing, hacking attempts, and other common cybersecurity threats.

4. Maximum convenience. Users do not need to enter or copy codes — a single touch is enough for the system to confirm their identity.

5. Works without the internet. This is a standalone device that does not require a network connection, making the authentication process more reliable and secure.

In conclusion

YubiKey is one of the largest and most well-known brands in the hardware keys and hardware protection market. The device does not connect to the internet directly, so it cannot be hacked remotely. All operations are encrypted, and the key stores data separately from the computer, making it impossible to read passwords even if the main system is compromised.

Simply put, YubiKey is a hardware 2FA key that verifies the user's identity using a physical device, without the need to enter passwords manually.Subscribe and get access to the GoMining course on cryptocurrency and Bitcoin, which is still free: https://academy.gomining.com/courses/bitcoin-and-mining