Please watch the Passwordless video for a quick introduction.
Passwordless authentication is a method of verifying a user's identity without requiring a traditional password. Instead, it uses alternative factors that enhance security and improve user experience. Common approaches such as:
- Biometric Authentication: Uses physical characteristics such as fingerprints, facial recognition, to grant access.
- One-Time Code: Sends a unique code to the user's mobile device or email, which they enter to authenticate.
Passwordless authentication is supported for HKUST SSO Service, allowing users to enjoy a seamless and secure logon experience. After enabling the passwordless authentication, password will only be needed in very rare occasions. Passwordless authentication will replace DUO 2FA, offering the same level of security with significantly improved convenience. Here’s why password-based authentication is becoming obsolete:
- Password is inconvenient, especially if complex combination is required
- long password is hard to remember
- non-alphabet password is difficult to type, especially when using mobile
- Security weakness - easily being attacked because you type it on many different devices and in many occasions, increasing the chance of being eavesdropped
- Overall, it is costly for both users and IT support
Benefit
- Enhanced Security
Eliminates password-related risks such as phishing, credential stuffing, and brute-force attacks. - Improved User Experience
Users no longer need to remember complex passwords, streamlining the login process for faster and more convenient access. It also enables a seamless sign-in experience across web applications while reducing the frequency of multi-factor authentication (MFA) prompts.
Implementation
ITSO implemented Passwordless authentication using Microsoft technology in the following services.
| Browser-based SSO (CAS logon) using Microsoft Authenticator APP | Window 10/11 Sign On using Window Hello for Business (WHFB) | |
| Introduction | Microsoft Authenticator is a mobile app for Azure MFA and Passwordless. In a situation if the Authenticator app cannot be used or network is not available, the login flow can fall back to password and MFA. |
|
| Usage Scenarios | Sign on CAS and Office 365 apps with your mobile only, usually with the added security of biometric verification available in your mobile device |
|
| Requirements |
|
|
| Getting Start |
|
|
| Note |