System change log

March 11, 2020

• The security certificate for the API endpoints at api.authorize.net and apitest.authorize.net has been renewed. No impact is expected by this change. Contact Customer Support if you encounter issues.

September 23, 2019

• Authorize.net IP addresses for the API endpoints, test.authorize.net and apitest.authorize.net, have changed. Please see the Support Center document on Authorize.net Domains and IP Addresses for updated details.

April 24, 2019

• Authorize.net IP addresses for the API endpoints, secure.authorize.net and api.authorize.net, have changed. Please see the Support Center document on Authorize.net Domains and IP Addresses for updated details.

January 15, 2019

• SHA-1 ciphers disabled on api2.authorize.net and secure2.authorize.net in Production. Use ECDHE and AESGCM ciphers as a best practice.

November 6, 2018

• SHA-1 ciphers disabled on apitest.authorize.net and test.authorize.net in Production. Use ECDHE and AESGCM ciphers as a best practice.

September 20, 2017

• 3-DES Cipher disabled in Production. 

May 1, 2017

• Disabled TLS 1.0 and 1.1 in sandbox. 

April 12, 2017

• Disabled HTTP GET in sandbox. 

July 30, 2016

• 3-DES Cipher disabled in Sandbox

July 7, 2016

• Relay Response and Silent Post will now originate from the following IP Addresss:
  • 198.241.168.60 
  • 198.241.162.104
    
  • 198.241.206.38
  • 198.241.207.38
    
• If you have a firewall that blocks inbound Internet traffic and use Relay Response or Silent Post, please add these IP addresses to your whitelist.

May 12, 2016

• RC4 Cipher disabled in Sandbox

September 21, 2015

• Upgraded our security certificates to use Security Hash Algorithm 2 (SHA-2).

August 17, 2015

• The "From" address field on email receipts will now display "noreply@mail.authorize.net" as the sending email address. This change will also apply to ARB summary and settlement-related emails.

October 27, 2014

• Relay Response and Silent Post will now originate from the following IP Addresss:
  • 198.241.168.60 
  • 198.241.162.104
    
• If you have a firewall that blocks inbound Internet traffic and use Relay Response or Silent Post, please add these IP addresses to your whitelist.