Message-Level Encryption Keys

When events contain personally identifiable information, such as payment information, the notifications are sent using message-level encryption. Before you can send requests for
services using message-level encryption, you must go to the
Business Center
and create a security key for your
merchant account.
Message-level encryption keys expire after 3 years.
Security keys can be used to make any request, including payments. Treat your security keys as you would any secure password.
You must use separate keys for the test and production environments.
For more information on how to create message-level encryption keys, see Creating a Message-Level Encryption Key.
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