Last updated: October 2026
We collect only what's necessary to provide our service:
Your documents are encrypted at rest (AES-256) and in transit (TLS 1.3). We maintain strict access controls and hash-chained audit logs. Your documents and our database are stored with Supabase in the AWS Frankfurt region (Germany). Documents are processed on our servers in Helsinki, Finland. Both are in the European Union.
If you connect an AI assistant such as Claude or ChatGPT to Sifrsys, you approve it on a Sifrsys consent screen for one organization and a listed set of permissions. The assistant then acts as you. It can never do more than your own role allows, and your organization can require an admin's approval for sensitive actions or switch them off.
We receive only what the assistant sends to our tools, for example a room name, a question, or a file you ask it to upload, together with the name and version of the assistant's software. We do not receive or store your conversation with the assistant. What our tools return is sent to the assistant you connected and is handled by its provider under that provider's terms. Depending on what you ask, that can include room and document names, document passages and AI answers, the names, email addresses, phone numbers and roles of participants and team members, engagement and audit records (including IP addresses), and Q&A content.
We store connection tokens only as hashes. Access tokens expire after one hour, and refresh tokens after 30 days without use. You can revoke a connection at any time under Settings → Agents & API, and an organization admin can switch off all agent access at once. Every action an assistant takes is recorded in your organization's audit log under your name.
We rely on a small set of infrastructure providers to run the service: Supabase (database & storage), Vercel (hosting), Stripe (payments), Resend (email), Twilio (WhatsApp/SMS invites), Anthropic and Voyage AI (AI processing — contractually barred from training on your data), Hetzner (document processing, EU), and PostHog (product analytics). If you connect Google Drive, Microsoft 365 or Dropbox to import files, we read only the files you choose from that account. Email privacy@sifrsys.com for the full subprocessor list or a data processing agreement.
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We use essential cookies for authentication and security. We also use PostHog, a product analytics service, which stores a first-party cookie and a local storage entry to measure how the site and product are used. We do not use advertising cookies, and we do not sell or share this data for advertising.
Questions? Email us at privacy@sifrsys.com