812f2401_rivacy___Cookies___PlumbCenter__Description_and_Purpose
[Cookie Name] WC_AUTHENTICATION_ID [Session / Persistent] Session [First / Third Party] First Party [Description and Purpose] 
WebSphere Commerce uses a secure authentication cookie to manage authentication data. An authentication cookie flows only over SSL, and has a timestamped signature for increased security. This cookie is used to authenticate the user over SSL-connections.
Security Privacy & Cookies | PlumbCenter
Description and Purpose