LSA (Local Security Authority) is a subsystem related to Windows security. It manages user rights information and stores password hash etc. in the memory. In OS including Windows 8.1 and others, LSA Protection Mode serves to protect such information from being stolen.
The CA Identity Manager PSA (Password Sync Agent) is not compatible with the LSA Protection Mode enabled.
Release : 14.3 CP1
Component : Identity Minder(Identity Manager)
Enhanced functionality of the host operating system.
The PSA (Password Sync Agent) has been upgraded to accommodate LSA Protected mode (LSASS) via 14.3 CP2
https://techdocs.broadcom.com/us/en/symantec-security-software/identity-security/identity-manager/14-3/Release-Notes/release-features-and-enhancement/Identity-Manager-14-3-CP2.html#concept.dita_b51ab03e-6e77-49be-8235-e50ee477247a_LSASS