May 16, 2024

Anonybit Team

What Is A FIDO Standard Security Key? Guidelines For Deployment

Blog person generating FIDO Standard Security Key

The FIDO standard security key is revolutionizing online security, offering a passwordless security solution that is both secure and convenient. By eliminating the need for passwords altogether, this innovative technology ensures that your online accounts are protected from cyber threats while simplifying the login process. With the FIDO standard security key, users can enjoy a seamless and secure online experience, free from the hassle of remembering complex passwords. Learn more about the FIDO standard security key and how it can transform your online security strategy.

What Is FIDO Authentication?

woman trying to understand FIDO Standard Security Key

FIDO (Fast IDentity Online) is a set of open, standardized authentication protocols aimed at eliminating the use of passwords for authentication. The FIDO Alliance, an open industry association, develops and promotes these protocols to reduce the world’s over-reliance on passwords.

Secure Authentication with FIDO Protocols

FIDO authentication protocols use standard public key cryptography techniques to secure user authentication, ensuring that all communications are encrypted and private keys never leave users’ devices. This approach lessens the chances of someone discovering them during transmission, making the authentication process stronger and more secure. 

User Experience in FIDO Authentication

FIDO authentication involves an initial registration process, after which users can sign on to a FIDO-enabled product or service by providing a fingerprint, speaking into a microphone, looking into a camera, or entering a PIN, depending on the technology available on their computer or smartphone and the methods accepted by the product or service.

The authentication process is designed to be seamless, with much of it happening behind the scenes, so users are not aware of the complexity involved. There are three different types of FIDO authentication protocols available: 

  • FIDO Universal Second Factor (FIDO U2F)
  • FIDO Universal Authentication Framework (FIDO UAF)
  • FIDO2, which includes the W3C’s Web Authentication (WebAuthn) specification and FIDO Client to Authenticator Protocol (CTAP).

The choice of protocol depends on the level of security required, the type of experience desired, and compatibility with existing systems and infrastructure. The FIDO Alliance has hundreds of member companies across various industries working together to develop technical specifications for passwordless authentication. These companies include Amazon, Apple, Google, Microsoft, Visa, and Ping Identity, among others. The Alliance’s certification programs allow companies to verify conformance to the FIDO specifications and ensure interoperability among FIDO products in the market.

What Is A FIDO Standard Security Key?

computer asking for a FIDO Standard Security Key

Fast Identity Online (FIDO) is a technical specification for online user identity authentication. It is used in scenarios such as biometric login, allowing you to use a selfie or fingerprint scan to unleash a  cryptographic key that enables to authentication in to your online accounts. Since it improves security, protects privacy, and simplifies the verification experience, many Android and iPhone devices support this authentication method. 

Two-Factor Authentication with FIDO Security Keys

One option for implementing FIDO involves a portable security key hardware device in addition to a passwordto perform authentication. The appearance of FIDO security key hardware devices is similar to that of USB flash drives and USB keys. They also function like some USB keys. You need to touch the buttons on them to confirm your operation. Another option is to use a cloud-based biometric for authentication, which would then speak to the user device to release the cryptographic key. Yet another method is to leverage the locally stored biometric on the device.

Enhanced Security with FIDO Security Keys

FIDO security keys are designed to keep users’ sensitive credentials, known as passkeys, securely stored on the physical device. This means that even if a website’s server is compromised, the user’s passkey remains safe. By using FIDO security keys, users can enhance their overall security posture and improve their authentication experience. These security keys eliminate the need for users to remember lengthy and complex passwords, offering a more convenient and secure way to log in to their favorite applications and services. The downside is that the key is limited to the user’s device and the FIDO server is not authenticating the actual user; it is only authenticating the cryptographic key.

Advantages Of  A FIDO Security Key Over Other Authentication Methods

person using FIDO Standard Security Key

Elimination of Passwords

FIDO security keys eliminate the need for passwords, which are often weak, easily guessed, or compromised through phishing attacks. This ensures that user credentials are secure and not vulnerable to password-related attacks.

Superior Security

FIDO security keys utilize public-key cryptography, providing a higher level of security compared to traditional password-based authentication methods. This ensures that the user’s sensitive information is protected with advanced cryptographic techniques.

Protection Against Credential Theft

FIDO security keys protect against credential theft, replay attacks, and other common vulnerabilities associated with passwords. The use of FIDO security keys ensures that even if the authentication data is intercepted, it cannot be reused to gain unauthorized access.


FIDO security keys are resistant to phishing attacks, as the authentication protocol enforces the verification of message origin, making it impossible for bogus websites to be recognized. This adds an extra layer of security against phishing attempts aimed at stealing user credentials.


FIDO security keys are designed for secure authentication to many accounts with the aid of a single authenticator, generating unique and anonymous authentication codes for each account. This ensures that users can securely access multiple accounts without compromising security.

Passwordless Login

The FIDO2 standard adds support for streamlining the secure login process by removing day-to-day reliance on passwords altogether, reducing password risk and the burden of password administration on IT support teams. This provides a convenient and secure way for users to authenticate their identities without passwords.

Biometric Integration

FIDO authentication protocols can be integrated with biometrics, such as fingerprint, facial, or voice recognition, for enhanced security and convenience. This allows for secure and user-friendly authentication methods that are difficult to replicate.

Multi-Factor Authentication

FIDO authentication satisfies multi-factor authentication requirements without using passwords, leveraging different authentication factors simultaneously, such as possession (device) and inherence (biometrics). This ensures that authentication is robust and resistant to unauthorized access attempts.

Reduced Vulnerability to Phishing and Social Engineering

The use of a biometric-based passwordless MFA solution significantly hardens defenses and reduces vulnerability to phishing and social engineering attacks. This helps organizations and users to protect their sensitive data and prevent unauthorized access to their accounts.

8 Best Practices For Employing Security Keys For Authentication

team utilizing FIDO Standard Security Key

1. Disabling and Removing Phone Numbers for Enhanced Security

Phone numbers associated with accounts should be disabled and removed to prevent potential vulnerabilities to hacking and spoofing. Utilizing phone numbers for authentication can expose accounts to SIM swapping attacks, where an attacker gains control of a user’s phone number to intercept authentication codes and gain unauthorized access. By removing phone numbers and relying solely on FIDO security keys, the vulnerability associated with phone-based authentication can be eliminated.

2. Implementing Time-based One-Time Passwords (TOTP) and Backup Codes

Employing a Time-based One-Time Password (TOTP) and configuring it in at least two authenticator apps or devices for backup provides an additional layer of security, but it is vulnerable to phishing. TOTP generates a unique password that changes periodically and requires physical access to the authenticator app or device for authentication. In case of device loss or failure, storing printed backup codes in a secure location like a fire-resistant document vault ensures continued access to accounts without reliance on a single device.

3. Strengthening Authentication with Multiple FIDO2 Security Keys

Configuring two or more FIDO2 security keys for accounts enhances authentication security. Combining a password with a security key that requires pressing or fingerprint activation delivers robust two- or three-factor authentication, significantly reducing the risk of unauthorized access. Employing multiple security keys adds redundancy and ensures account access in case of key loss or malfunction. This method may only make sense for privileged access or very high-security use cases

4. Providing Clear Instructions for User Guidance

Offering clear, step-by-step instructions and visual aids assists users in enrolling and authenticating security keys without confusion. Clarity in instructions helps users understand the setup process and encourages successful implementation. Visual aids further enhance comprehension and guide users through the authentication process for seamless integration.

5. Simplifying Authentication Workflows for User-Friendly Experience

Streamlining the authentication workflow makes it intuitive and easy for users to navigate and adopt security keys. Eliminating unnecessary steps and simplifying the process reduces friction, enhancing user experience. A seamless authentication workflow encourages users to embrace security keys, promoting widespread adoption and improved account security.

6. Effectively Handling Authentication Errors for Efficient Issue Resolution

Providing descriptive error messages and actionable troubleshooting steps for authentication errors assists users in resolving issues promptly. Clear guidance enables users to troubleshoot errors efficiently and continue with the authentication process without delays. Effective error handling minimizes user frustration and ensures a smooth authentication experience.

7. Educating Users on Security Key Benefits and Best Practices

Educating users on the advantages of security keys, their functionality, and secure usage practices promotes awareness and understanding. User education enhances user confidence in utilizing security keys effectively and encourages adoption. By highlighting the benefits and best practices, users are empowered to leverage security keys for enhanced account security.

8. Designing for Accessibility and Consistency Across Platforms

Designing the authentication process to be accessible and consistent across different devices and platforms ensures usability for all users. Accessibility features accommodate users with varying abilities, making security keys inclusive for all individuals. Consistency in user experience fosters familiarity and ease of use, enabling users to seamlessly integrate security keys into their authentication practices.

Book A Free Demo To Learn More About Our Integrated Identity Management Platform

At Anonybit, we help companies prevent data breaches and account takeover fraud with our decentralized biometrics technology. With our decentralized biometrics framework, companies can enable passwordless login, wire verification, step-up authentication, help desk authentication and more. 

Comprehensive Security Solutions for Companies

We are on a mission to protect companies from data breaches, account takeovers and synthetic identity on the rise, privacy regulations, and digital transformation. To achieve this goal, we offer security solutions such as:

  • Secure storage of biometrics and PII data
  • Support for the entire user lifecycle
  • 1:1 authentication, including FIDO support, and 1:N matching for lookups and deduplication

Balancing Privacy and Security with Anonybit’s Integrated Platform

Anonybit eliminates the tradeoffs between privacy and security. Prevent data breaches, reduce account takeover fraud, and enhance the user experience across the enterprise using Anonybit. Book a free demo today to learn more about our integrated identity management platform.

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