The following was a notice sent to me by Authorize.net. I don't know the mechanics behind how Method communicates with Authorize... but since our company uses Authorize.net with Method, I wanted to be sure that everything would still work after September 21st.
As part of our continuous upgrades to enhance system performance and security, on September 21, 2015, we are upgrading api.authorize.net to new security certificates, which are signed using Security Hash Algorithm 2 (SHA-2) and 2048-bit signatures.
These upgrades were already completed onsecure.authorize.net in May. If your website or payment solution connects to api.authorize.net and any updates are necessary to use the new certificates, please refer to this blog post in our Developer Community, which has all of the certificate information you and your developer will need for this update. Our sandbox environment has already been updated so that you can validate that your solution will continue to work using SHA-2 signed certificates, prior toSeptember 21st.
After the update is complete on September 21st, any website or payment solution that connects via api.authorize.net that cannot validate SHA-2 signed certificates will fail to connect to Authorize.Net's servers.
Hi Meghan,