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Duo Security | IT Services for Employees | Seneca Polytechnic

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Duo Security

IMPORTANT
  • Employees using Duo Mobile version 4.85.0 will see an in‑app warning recommending an update.
    • Some users may experience issues as early as February 2, 2026.
    • As of March 31, 2026, all unsupported versions will stop working entirely. 
  • Effective April 16, 2026
    • Duo Mobile will no longer support iOS 16 and Android 11.
    • The new minimum supported versions are iOS 17+ and Android 12+.

About

Multifactor authentication (MFA) helps protect Seneca services by adding an extra layer of security beyond your username and password. Seneca uses Duo Mobile as the second authentication factor, requiring users to approve sign‑in attempts through the free Duo Mobile app on their mobile device. This additional step helps prevent unauthorized access, even if a password is compromised. For example, when you log in to Seneca's Office365 email, your phone will show a notification prompting you to accept or deny the log in attempt.

Duo Security enrolment

When you are on-boarded, an email will be sent to your personal email to activate your Seneca email account and to complete the self-ernolment process for Duo Security two-factor authentication service. Please follow the instructions as directed in the email.

Installing the Duo Mobile App

The "Duo Mobile" app is available for both iPhone and Android devices.  Simply install the app and follow the instructions.  Instructions are available at the following pages below.

MFA protected services

Seneca has MFA protection to the following services and more:

  • Seneca Office365
  • GlobalProtect VPN
  • Employee Home (i3)

To use the above services, you will be required to use Duo Mobile to approve your logins.  For instructions on using Duo Mobile with these services, please review the appropriate page below.

For any assistance with Duo, please contact the ITS Service Desk.

Duo Mobility App meets Seneca’s security and privacy standards. For more information on Seneca’s commitment to protecting your privacy, visit the Privacy Notice website, or contact the Privacy Office at privacyoffice@senecapolytechnic.ca.

Resources

Here is a list of additional resources to help you learn about Duo:

 

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