After the sepmigration 11.x to SEP 12.1 the SNAC component appear in the SEPM (alert about licence for example) and in the client status. The customer don’t use SNAC since a long time (previous install deleted previously).
An hold policies still apply in host integrity but this policies is not present because SNAC.XML has been removed
Stop the SEPM services.
Find "snac.xml" from SEPM SNAC CD layout (Download the correct snac.xml for SEPM version number)
Paste the "snac.xml" to "[SEPM installation]\tomcat\etc\license" folder.
Start SEPM again, go to console and withdraw the HI(Host Integrity) policy from all the client groups.
In the SEPM go to Clients tab browse the groups which are in question, click on General settings from Policies tab , Go to Security settings and Uncheck Enforce Client.
Wait until SEPM finishes all the group policies compilation.
Stop SEPM again and remove the "snac.xml".
Restart the SEPM services. All information about SNAC have disappear.
At the next restart of the SEP client SNAC will be removed.