What are the best ways to improve two-factor authentication?

2 Use time-based codes

Another way to improve 2FA is to use time-based codes that expire after a short period of time, usually 30 seconds or less. Time-based codes are generated by an algorithm that synchronizes with a server or a device, and they change every time you log in. This makes them more secure than codes that are sent via SMS or email, which can be intercepted, delayed, or reused. You can use time-based codes with apps such as Google Authenticator, Authy, or Microsoft Authenticator, or with hardware devices such as YubiKey or Titan.

3 Use backup options

A third way to improve 2FA is to use backup options in case you lose access to your primary factor, such as your phone or your token. Backup options can include recovery codes, backup phones, backup emails, or backup devices. You should generate and store your backup options securely and offline, and use them only when necessary. You should also update your backup options regularly and revoke any unused or compromised ones.

4 Use encryption and verification

A fourth way to improve 2FA is to use encryption and verification to protect your data and your identity. Encryption is the process of converting your data into a code that only you and the intended recipient can decipher. Verification is the process of confirming that the data or the sender is authentic and not tampered with. You can use encryption and verification with tools such as SSL certificates, VPNs, digital signatures, or end-to-end encryption. These tools can help prevent hackers from intercepting, modifying, or impersonating your data or your identity.

5 Use adaptive authentication

A fifth way to improve 2FA is to use adaptive authentication, which is a dynamic and flexible approach that adjusts the level of security based on the context and the risk of the login attempt. Adaptive authentication can use factors such as location, device, time, behavior, or network to determine the likelihood of fraud and the need for additional verification. For example, if you log in from a trusted device and a familiar location, you may only need a password. But if you log in from a new device or a suspicious location, you may need a biometric factor or a code.

6 Use feedback and education

A sixth way to improve 2FA is to use feedback and education to inform and empower your users. Feedback is the process of providing your users with clear and timely information about their login activities and security status. Education is the process of teaching your users about the benefits and the challenges of 2FA, and how to use it effectively and safely. You can use feedback and education with tools such as notifications, alerts, reports, or tutorials. These tools can help increase user awareness, confidence, and satisfaction with 2FA.

7 Here’s what else to consider

This is a space to share examples, stories, or insights that don’t fit into any of the previous sections. What else would you like to add?