User Security Overview

Salesforce provides each user in your organization with a unique username and password that must be entered each time a user logs in. Salesforce issues a session cookie only to record encrypted authentication information for the duration of a specific session. The session cookie does not include either the username or password of the user. Salesforce does not use cookies to store other confidential user and session information, but instead implements more advanced security methods based on dynamic data and encoded session IDs.