On 7 October 2024, ARIN will lock all remaining ARIN Online accounts that have not enabled multifactor authentication (MFA).

As of 1 February 2023, ARIN requires MFA on all new ARIN Online accounts. Users with accounts created before February 2023 were notified and encouraged to log in at their earliest opportunity, where they would be prompted to set up MFA. This step was taken to provide stronger security for the registry, reduce the risk of fraud, and increase confidence in the integrity of their ARIN resources.

On 17 July, we announced that ARIN was continuing to take steps to secure the registry by enforcing MFA. We engaged in direct communications with 19,853 account holders linked to organizations with direct allocations, detailed reassignments, and reallocations who had not yet enabled MFA on their accounts. These users were notified that they needed to set up MFA within 60 days or their accounts would be locked, As of 4 September 2024, 15,593 accounts have not completed MFA setup.

We are extending this deadline by two weeks to allow more time for account holders to enable MFA on existing accounts. We strongly encourage ARIN Online account holders who have not set up MFA to do so before the 7 October deadline.

Users with locked accounts can contact Registration Services during ARIN operating hours, 7:00 AM to 7:00 PM ET Monday through Friday, to unlock and set up MFA and regain access to ARIN Online.

ARIN relies on the support of its customers to ensure the accuracy and security of the registry. We rely on all our customers to follow best practices for account security and to report any suspicious activity to us immediately.

Regards,

John Curran
President and CEO
American Registry for Internet Numbers (ARIN)

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Helpful Resources:

Need help setting up your MFA? Visit https://www.arin.net/MFA to get started. You’ll find guides on enabling MFA via an authenticator application, SMS, or security key hardware.

We also provide information on how to receive and save your MFA recovery codes, as well as what to do if you’ve lost access to your authenticator app, SMS phone number, or security key.