812f2401_rivacy___Cookies___PlumbCenter__Description_and_Purpose
[Cookie Name] WC_USERACTIVITY_ID [Session / Persistent] Session [First / Third Party] First Party [Description and Purpose] 
This is a user session cookie that flows between the browser and server over both SSL or non-SSL connection. It is used for user identification over non-SSL connections. It contains user session values such as login timeout, session identifier, etc.
Security Privacy & Cookies | PlumbCenter
Description and Purpose