As you may be aware, new PCI DSS requirements state that all payment systems must disable earlier versions of Transport Layer Security (TLS) protocols, TLS 1.0 and TLS 1.1. Authorize.Net is set to disable those protocols on February 28, 2018.
To help merchants identify if they’re using one of the older TLS protocols, Authorize.Net will temporarily disable those connections for a few hours on January 30, 2018 and then again on February 8, 2018.
Today, January 24, 2018, Authorize.Net sent an e-mail to Authorize.Net merchants informing them of this planned disablement.
Based on the API connection they are using, on either one of these two days they will not be able to process transactions for a short period of time. This disablement will occur on one of the following dates and time:
Merchants using TLS 1.2 by these dates will not be affected by the temporary disablement.
We strongly recommend that connections still using TLS 1.0 or TLS 1.1 be updated as soon as possible to the stronger TLS 1.2 protocol.
Note: Browsers released prior to 2014 may not support TLS 1.2. You can check your browser's TLS support by visiting https://www.howsmyssl.com/.
If you have any questions about this announcement or the upcoming TLS disablement, please refer to our TLS FAQs. Thank you for your attention to this matter and for being an Authorize.Net partner.
Thank you for your attention to this matter and for being an Authorize.Net merchant.