Duo (MFA)

Using Duo at TC (Faculty & Staff)

In order to protect your confidential direct deposit banking information, all Teachers College faculty and staff will be required to use Multi-Factor Authentication (MFA) to access their online, self-service direct deposit banking information on the myTC Portal. MFA provides a secure avenue for TC employees to access direct deposit information from both on and off campus.

 

Step-by-step instructions for how to use Duo in the myTC Portal, and well as how to add a mobile device, can be found in below:


When you click any link in the myTC portal that contains financial information, you will now be prompted to verify your identity by receiving a call on your work phone or a call, text message or push notification on another device of your choosing (such as your mobile phone).

How to use DUO in the myTC Portal

Frequently Asked Questions


Once you have been automatically enrolled in Duo, you will be required to use two-factor authentication.

Duo allows you to remember a device for 7 days. You can approve any computer that you commonly use and will not be required to provide multi-factor authentication confirmation for 7 days. For example, if you have a desktop and a laptop, you can approve both computers as trusted devices and not have to confirm your identity with a phone for 7 days.

You are encouraged to set up Duo on more than one phone in case you forget a phone at home or are not at your office phone. When you are doing your initial setup, you may add as many phones as you like (landline and/or mobile). After that, when you are logging in you can choose which line Duo will send the authentication request to (via smart phone app, SMS text message, or phone call depending on what you chose).

If you get a new phone, even if the Duo app is restored from a cloud backup, it will lose its association with your account. If the phone number of your new phone is the same, you can still authenticate using the phone call or sms option, but the push option will not work until reactivated. You can re-activate your new phone with the Manage devices option. First, ensure that you still have access to any of the phone numbers enrolled in Duo. Set the authentication option to Phone Call and then select Manage devices. The phone you chose should ring, and you will need to answer, and hit any key to authenticate. From here, you can select the phone number of your new phone (assuming it’s the same phone number) and under Actions, select Activate Duo Mobile. This will prompt you to scan in a new QR code from the Duo app. If you have difficulties with this process, you can contact the Service Desk for assistance at 212.678.3300 or servicedesk@tc.columbia.edu.

The Duo smart phone app is designed to work internationally. If you install the app, it can generate the required code without need of either a telephone signal or data plan, and it can do this anywhere in the world. If you have a signal and data plan, the app makes two-factor authentication as easy as a pushing a single button, but if you don’t have one of those two things, you can use the app to generate a six digit code and enter that manually.

Please contact the Service Desk for assistance at 212.678.3300 or servicedesk@tc.columbia.edu. They will verify your identity and provide a temporary passcode. We encourage you to then go into manage devices and add an additional phone.

Please contact the Service Desk immediately and we will lock your Duo account to prevent malicious activity.

If you don’t have a cell phone, Duo allows you to use your landline phone. You would receive an automated phone call that requires you to hit any button to confirm your identity.

The Duo smart phone app provides options that work without a data plan, a texting plan or even a connection, if necessary. The app can generate the required code without need of either a telephone signal or data plan, and it can do so anywhere in the world. If you have a signal and data plan, the app makes two-factor authentication as easy as a pushing a single button, but if you don’t, you can use the app to generate a six-digit code and enter that instead

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