> ## Documentation Index > Fetch the complete documentation index at: https://docs.trinigence.com/llms.txt > Use this file to discover all available pages before exploring further. # Login & Sessions > How authentication and strategy sessions work in the Chrome Extension. ## Authentication model The extension requires you to: * be logged into Trinigence * authorize the extension once After login: * your session is reused * no repeated logins are required *** ## Strategy sessions Each Trinify action creates: * a unique strategy session * a reproducible backtest * a linkable result Sessions: * persist in your account * can be reopened later * can be edited or iterated in the app Understand what a session contains. *** ## Security behavior * no credentials are stored in the extension * authentication tokens are short-lived * all sensitive actions happen server-side *** ## What to read next