Signed. Sealed. Provable.

FlowSign is built for the paperwork your business depends on. Here's how we keep it safe - and how you can verify it for yourself.

Two people co-signing an agreement on a tablet with a stylus, in a bright office.

Encrypted in transit and at rest

TLS 1.2+ everywhere. Documents and audit trails are encrypted at rest with keys we rotate on a defined schedule.

Signing keys you can verify

Every signature is sealed with a document-scoped key. A tampered PDF fails verification - quietly, but visibly.

Tamper-evident audit trail

Every action, IP, identity check and delivery event is recorded. The audit trail is exportable as a signed PDF whenever you need it.

Access controls that map to your org

Roles, teams and SSO (roadmap). Least-privilege by default - a sender can't see another team's packages.

Reviewed sub-processors

A short list of infrastructure providers, all reviewed against our data processing standard. Full list in the legal centre.

Compliance in progress

We're building toward SOC 2 Type II and ISO 27001. Our controls program is documented and available under NDA.