NANOGers -

A consultation opened today on potentially requiring use of 2-factor 
authentication to login into ARIN Online – this would take place once SMS 2FA 
is deployed.   If you think that this is: a) a great idea, b) a bad idea, c) 
anything else, then feel free to subscribe to the arin-consult mailing list 
(open to all at http://lists.arin.net/mailman/listinfo/arin-consult) and 
provide your feedback.

Best wishes,
/John

John Curran
President and CEO
American Registry for Internet Numbers


Begin forwarded message:

From: ARIN <i...@arin.net<mailto:i...@arin.net>>
Subject: [arin-announce] Consultation on Requiring Two-Factor Authentication 
(2FA) for ARIN Online Accounts
Date: 24 May 2022 at 12:45:48 PM EDT
To: "arin-annou...@arin.net<mailto:arin-annou...@arin.net>" 
<arin-annou...@arin.net<mailto:arin-annou...@arin.net>>

**Background**

In 2015, ARIN deployed a Time-Based One-Time password (TOTP) implementation of 
Two-Factor Authentication (2FA). Since the time of implementing that login 
security feature, 3.2 percent of ARIN Online users have opted to use 2FA with 
their accounts.

Since October 2020, the ARIN Online system has been subject to a series of 
dictionary-based password guessing attacks. In March of 2021, we conducted ACSP 
Consultation 2021.2: Password Security for ARIN Online Accounts 
(https://www.arin.net/participate/community/acsp/consultations/2021/2021-2/) on 
proposed improvements to increase account security. This consultation resulted 
in an agreement to move forward with several improvements that have 
subsequently been deployed. However, we continue to see frequent attacks on our 
log-in systems, and ARIN staff continues to be heavily engaged in mitigating 
these attacks. Accounts not using 2FA are susceptible to these attacks. We 
recently updated the community on this topic during ARIN 49 held in Nashville 
and online in April. You can review this information from the ARIN 49 Meeting 
Report (https://www.arin.net/participate/meetings/ARIN49/) by looking for the 
presentation titled “Brute Force Login Attacks”.

It is our intention to make 2FA mandatory for all existing and new ARIN Online 
accounts going forward. The security of ARIN Online accounts is paramount to 
the success of the registry, and we do not believe it is tenable to continue 
without making 2FA required for all ARIN Online accounts.

We are currently developing a second method of 2FA use with ARIN Online to add 
to our long-deployed TOTP implementation. In the coming months, we will deploy 
a Short Message Service (SMS) 2FA implementation, thereby adding a second 2FA 
option for ARIN Online users. At that time, users will be able to choose 
between two types of 2FA – SMS and TOTP.   Adoption of TOTP 2FA has been 
limited in part due to perceived complexity, and the addition of SMS-based 2FA 
will provide a second option that is easier to use for many customers – and 
provide much more protection than the simple username-password condition of 
many ARIN Online user accounts today.  (ARIN also plans on adding support for a 
third 2FA option in the future – Fast Identity Online 2 (FIDO2) – in response 
to community suggestions, but we do not believe it is prudent to delay 
requiring 2FA on ARIN Online accounts until that third option becomes 
available.)

**Requiring 2FA For ARIN Online Accounts**

By requiring 2FA for ARIN Online accounts that control number resources, the 
ARIN community should see stronger security for the registry, reduced risk of 
account fraud attempts, and increased confidence in the integrity of their ARIN 
resources.

ARIN intends to require 2FA for all ARIN Online accounts shortly after 
SMS-based 2FA authentication is generally available.  We are seeking 
confirmation from the ARIN community regarding this plan, and ask the following 
consultation question:

-------------------
Once SMS-based two-factor authentication (2FA) is available for ARIN Online, do 
you believe ARIN *should not* proceed with requiring 2FA authentication 
(SMS-based or TOTP) for all ARIN Online accounts?  If so, why?
-------------------

The feedback you provide during this consultation will help form our path 
forward to increasing the security of ARIN Online for all customers. Thank you 
for your participation in the ARIN Consultation and Suggestion Process. Please 
provide comments to arin-cons...@arin.net<mailto:arin-cons...@arin.net>. You 
can subscribe to this mailing list at:

http://lists.arin.net/mailman/listinfo/arin-consult

This consultation will remain open through 5:00 PM ET on 24 June 2022.

Regards,

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


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