Trust Center
Built to protect your sensitive data and drive accountable human review.
Double Line is designed for accounting firms that need speed without giving up control. Security, privacy, audit visibility, and responsible AI controls are built into the foundation of the platform.
Enterprise-grade security architecture
Encryption for all sensitive data
Isolated data workspaces
Audit visibility and review controls
Least-privilege access controls
Human-in-the-loop approval model
Security program
Operational policies for secure AI accounting workflows.
Our security program is supported by documented data processing, privacy, and responsible AI policies that guide how the platform is built and operated.
Data Processing & Security Policy
How we process, store, encrypt, and safeguard client data across the platform.
Read policy →Privacy Policy
What information we collect, how it is used, and the choices you have.
Read policy →Responsible AI Policy
How our AI prepares work for human review, with transparency and approval controls.
Read policy →Private early access
Move from manual production to controlled AI review.
Double Line is opening early access with a focused group of independent accounting firms.