Enterprise-Grade Security
Your clients trust you with their data. You can trust SignFlow to protect it. Security is not an afterthought -- it is built into every layer of the platform.
Security at every layer
Eight layers of protection that keep your business and your clients safe.
Row-Level Security
Every database query is scoped to your organization using PostgreSQL RLS policies. Your data is isolated at the database level -- not just the application level.
AES-256-GCM Encryption
Integration credentials and sensitive data are encrypted at rest using AES-256-GCM, the same encryption standard used by governments and financial institutions.
PCI-DSS Compliant
Credit card data never touches SignFlow servers. All payment information is tokenized client-side before transmission, keeping you PCI compliant by design.
SOC 2 Ready Architecture
Our infrastructure is designed from the ground up to meet SOC 2 Type II requirements, with segregation of duties, access controls, and change management built in.
Complete Audit Trail
Every mutation -- every create, update, and delete -- is logged with the user, timestamp, and organization context. Full accountability for every action taken in the system.
Rate Limiting
All public-facing endpoints are rate-limited to prevent abuse. Payment pages, proposal links, and API webhooks are protected against brute-force and denial-of-service attacks.
Zod Input Validation
Every API route validates input with strict Zod schemas before processing. No extra fields, no type coercion surprises, no injection vectors. Invalid data is rejected immediately.
Role-Based Access Control
Fine-grained permissions ensure team members only see and do what they are authorized for. Organization owners, admins, and members each have clearly defined access boundaries.
Compliance and data isolation
SignFlow uses a multi-tenant architecture with strict data isolation enforced at the database level. Every query sets a session-level tenant context before execution, and PostgreSQL row-level security policies ensure that no organization can ever access another organization's data -- even if there is a bug in application code.
Our platform is hosted on Vercel with Neon PostgreSQL, both of which provide SOC 2 compliant infrastructure. All data is encrypted in transit (TLS 1.3) and at rest. Database backups are automated and encrypted.
For organizations operating in the EU, SignFlow is designed with GDPR readiness in mind. We support data export, deletion requests, and provide clear documentation of data processing activities. No client payment card data is stored on our servers at any time.
Security you can trust
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