Message-Level Encryption Keys

Before you can send requests for
Cybersource
services using message-level encryption, you must go to the Business Center and create a security key for your
Cybersource
merchant account.
Message-level encryption keys expire after 3 years.
Security keys can be used to make any call, including payments. Treat your security keys as you would any secure password.
You must use separate keys for the test and production environments.