Duo Security
Plano ISD Duo Security - Two Step Authentication
What is Plano ISD Duo Security and why do I need it?
With the rise of cyber threats, the District is constantly looking to improve its security posture. We find that passwords are increasingly easy to compromise. They are often stolen, phished, guessed, or hacked. The risks of compromised email accounts are real. Once an account is compromised, bad actors use it to steal sensitive data, scam others, and even open a backdoor in the network, which could lead to disruption of district operations, financial loss, and reputational loss.
Plano ISD Duo Security is the District's two-step authentication method (also known as the two-factor authentication method), designed to add an additional layer of security to protect users' email accounts and the Plano ISD Office 365 applications, including the following:
- Microsoft Webmail - (webmail.pisd.edu)
- Microsoft Outlook– (Desktop Email)
- Microsoft Teams
- Microsoft OneDrive, etc.
After users login to an application with their username and password, they will then be required to confirm their login using their personal mobile phone/device for successful login.

How do I enroll my mobile phone in Duo Security?
Duo is enabled by default for all the Plano ISD staff. You should receive an enrollment email with instructions to enroll your mobile phone/device in Duo Security. You can do it from wherever you are.
If you cannot access the enrollment email for any reason, you may follow the instructions outlined below:
- Open the App Store and download the Duo Mobile App on your phone.
- On your Desktop/Laptop/Chromebook, open a web browser and navigate to webmail.pisd.edu. If you are already logged in, you will have to logout and navigate back to webmail.pisd.edu
- Enter your username and password and press enter. You will then be prompted by the Plano ISD DUO setup process.
- We recommend using DUO push notifications. (Most Secure).
- After DUO is set up, when you log in to your email on a new device or a new browser session, you will receive a Duo Mobile notification on your phone. With a single tap, you can either approve or deny access.
You are securely logged in! After completing this process, you may want to log into your email from the devices you usually access to ensure you have access. If you run into any issues, you may refer to the Frequently Asked Questions section below or contact the Helpdesk (469-752-8767 helpdesk@pisd.edu).
Short Video Instruction on how to enroll a mobile device in Duo Security
Frequently Asked Questions
- I am already set up with Duo for another organization. Can I set up for both that organization and Plano ISD without conflict?
- What to do if the native Mail/Outlook/Calendar app stops syncing on my phone/tablet?
- I continue to have trouble accessing email using mail clients on my phone. What should I do?
- I can’t seem to install the Duo Mobile app. What should I do?
- My campus doesn’t have a good cellular reception. Will Duo Security work?
- How do I add a backup device with Duo Security?
- What to do if I forget/lose my Duo device?
- What happens if Duo Security on my mobile device prompts me and I am not trying to log into a Plano ISD Duo protected application such as Plano ISD email service?
- Does the Duo App take control of my mobile device?
- What devices are supported?
- What if I have a question that is not answered on this page?


