Unlock the Power of Security: How U2F Tokens can Protect Your Online Accounts and Devices

Benny Ehiemua
3 min readJan 15, 2023

Yubikeys, also known as Universal 2nd Factor (U2F) tokens, are a security measure that can be used to add an extra layer of protection to your online accounts and personal devices. These small, USB-based devices can be used in conjunction with traditional passwords to provide two-factor authentication (2FA) and help prevent unauthorized access to your sensitive information.

One of the main benefits of using a Yubikey token is that it is much more secure than traditional 2FA methods, such as SMS text messages or one-time codes generated by an app. This is because Yubikeys use a combination of public key cryptography and a secure element chip to ensure that only the intended user can access the account or device.

To use a Yubikey token, you will first need to register the device with the website or service that you want to secure. This typically involves plugging the token into your computer and following the prompts to complete the registration process. Once the token is registered, you will be prompted to insert the token into your computer or device whenever you want to log in to the associated account.

In order to use Yubikey token to secure your accounts, you will need to ensure that the website or service you are using supports U2F. Many popular websites, such as Google, Facebook, and Dropbox, now support Yubikeys, and more are adding support for it all the time.

In addition to securing online accounts, Yubikeys can also be used to secure your personal devices, such as laptops and smartphones. This is done by using the token to authenticate the device during the boot process, which can help prevent unauthorized access to the device’s contents.

Once you have implemented a Yubikey token as an added layer of security to your online accounts, it becomes significantly more difficult for a hacker to gain unauthorized access to your account. This is because a Yubikey token requires not only your password, but also physical possession of the Yubikey token in order to access the account. For example, let’s say that a hacker manages to obtain your password through a phishing scam or a data breach. Even with your password in hand, the hacker would still be unable to access your account because they would not have the Yubikey token. Without the Yubikey token, the hacker would be unable to complete the authentication process and would be denied access to the account.

Moreover, the Yubikey token uses public key cryptography, which ensures that the communication between the token and the service is secure, even if the hacker is able to intercept it. The token contains a private key that is known only to the token and the service, and this private key is used to encrypt the communication and ensure that it is secure. Additionally, Yubikeys also include a feature called “phishing resistant” which make it hard for hackers to replicate the website and steal your credentials, the Yubikey token will only work on the website that you have registered it with, it will not work on any phishing website.

In conclusion, Yubikeys are a powerful tool for securing your online accounts and personal devices. With their combination of public key cryptography, a secure element chip and phishing resistance feature, Yubikeys provide a much higher level of security than traditional 2FA methods. If you’re looking to add an extra layer of protection to your online accounts and devices, it’s definitely worth considering using a Yubikey.

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Benny Ehiemua

Woman in cyber. Assisting your journey to reclaim your rights to privacy through informative articles.