Splunk currently maintains the Cisco ASA TA located at : https://apps.splunk.com/app/1620/. This means they will also support this app if you have troubles with it.
The Cisco security suite is also made by Splunk; https://apps.splunk.com/app/525/. But support of the app is either through the forumns, direct contact with the Author, or through a PS engagement.
What are you trying to do, or what problems are you having?
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