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Multifactor Authentication

Duo Security





Subscriber List

Why Two-Factor? (links to Duo website)

Purchase Duo Security Two-Factor Authentication

InCommon and Duo Security have formed a partnership to bring phone-based two-factor authentication to the higher education community with a low-cost license program.

The program is open to accredited higher education institutions based in the U.S.

InCommon participants and Internet2 members receive a discount. For more information, email

1. Start with Duo Security's Free Trial

Duo Security offers a free personal edition (up to 10 users) that you can try out, then flip over to the InCommon program when you are ready for a full-scale implementation. Even if you know you want a site license, start with the free trial, which takes care of the technical part of setting up the service. A term-limited pilot program is also available direct from Duo Security.

2. Join InCommon

Duo's special pricing requires joining InCommon.

  • You can check here to see if your institution participates in InCommon.
  • If you are already an InCommon Participant, go to the next step.
  • If you are not an InCommon Participant, go to the "Join InCommon" web page. You can pursue joining InCommon and subscribing to the Duo program simultaneously.

Joining InCommon requires completing the InCommon Participation Agreement and submitting a one-time registration fee and an annual fee (these are in addition to the fees for the Duo service). The Join InCommon web page has a step-by-step guide to the process.

3. Complete the Duo Subscriber Addendum

  1. Make sure you have reviewed the fee schedule and know the cost for your institution (email for a copy of the fee schedule).
  2. Complete the Duo subscriber addendum [DOCX file].
  3. Send the completed addendum by email (, fax (734-913-4255), or postal mail (InCommon, 100 Phoenix Drive, Suite 111, Ann Arbor, MI 48108).

4. InCommon will Countersign the Subscriber Addendum

5. Payment of Annual Fee

InCommon will email an invoice for payment of the first year’s annual fee. Subsequent invoices will be emailed about a month prior to the subscriber anniversary date. Fees are based on an institution's student count, according to the U.S. Department of Education's IPEDS (Integrated Postsecondary Education Data System) information, or number of hospital users specified by the institution.

6. Start Using Phone-Based Two-Factor Authentication

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