Log into Windows machines using one-time codes sent via email, SMS, or voice call. This feature introduces robust two-factor authentication (2FA) capabilities for any organization that is currently only using a single factor to authenticate into the workstations.  

 

 

Why One-Time Codes for Windows Login? 

Passwords alone are no longer sufficient to protect sensitive data and systems. They can be guessed, stolen, or phished, leaving accounts vulnerable to unauthorized access. By integrating one-time codes into the login process, we add an extra layer of security that ensures only authorized users gain access.  

Here’s how it works: 

  • Step 1: Administrator sets up a policy to allow a select set of users, or users matching certain conditions to authenticate with one-time codes.  
  • Step 2: During a Windows login, a user enters their username and password.  
  • Step 3: User chooses how to receive their passcode.  
  • Step 4: A unique one-time code is sent to their registered email, phone (via SMS), or through a voice call depending on the chosen factor.  
  • Step 5: The user retrieves the code and enters it to complete the login process. 
  • Step 6: User is logged into their Windows workstation.  

Benefits 

  1. Enhanced Security: Even if attackers gain access to a user’s password, they cannot log in without the second factor—making it significantly harder for cybercriminals to breach endpoints.  
  2. User-Friendly Implementation: One-time codes are easy to deploy and use, ensuring minimal disruption for employees who are not carrying their phone or onboarding for the first time. It is also beneficial in scenarios where users need to log in to a remote workstation and require 2FA for enhanced security. 
  3. Well-suited for Asia-Pacific (APAC) region: OTP based authentication has become deeply integrated into the digital economy in India making adoption easier.  
  4. Consumer Education: Authentication with OTP’s is a familiar pattern making it a preferred choice for first time users.  

The downside of E-mail / SMS Passcodes  

It’s important to note that while Email, SMS passcodes are widely supported, many security experts recommend using more secure methods like authenticator apps or hardware tokens, when possible, as SMS can be vulnerable to interception. Check out our other Passwordless authentication methods for Windows Workstations for a more robust implementation.