Last updated 1 November 2026
Privacy notice
This notice explains how Open Source AI Ltd uses personal data in connection with the Tessera service. It covers people who visit this site, sign up for or administer a workspace, and contact us. For personal data held inside a Customer's workspace (employees, candidates and users of that organisation) the Customer is the controller and its own privacy notice applies; we process that data only as its processor under the Data processing agreement.
What we collect and why
- Sign-up and account data: your name, work email, organisation name, workspace address and password (stored hashed). Used to create and administer the workspace and to contact you about it. Legal basis: performance of a contract.
- Billing data: billing contact name and email, invoices, and the status of payments. Card details are entered directly with Stripe and never reach our servers. Legal basis: performance of a contract and legal obligation (accounting records).
- Service and security logs: IP address, browser, sign-in events, errors and the actions taken in the service, kept in the audit trail. Legal basis: legitimate interests in keeping the service secure and reliable, and the Customer's interest in an audit trail.
- Support correspondence: what you send us when you ask for help. Legal basis: legitimate interests in providing support.
We do not use cookies for advertising. The site uses only the cookies and browser storage needed to keep you signed in and remember your preferences.
Who we share it with
Stripe for billing; our UK hosting infrastructure; Microsoft only where your organisation enables a Microsoft integration. We do not sell personal data and we do not share it for marketing.
How long we keep it
Account and workspace data: for the life of the workspace and 60 days after it ends. Billing records: 6 years, as required for accounting. Security logs: 12 months. Support correspondence: 2 years.
Your rights
You can ask for access to, correction or deletion of your personal data, object to or ask us to restrict processing, and ask for a copy in a portable format, by emailing ranjith@hr-payrollsystem.com. You can also complain to the Information Commissioner's Office (ico.org.uk). If your question is about data held in your employer's workspace, please contact your employer, who is the controller of that data.
Contact
Open Source AI Ltd, data protection contact: ranjith@hr-payrollsystem.com. Open Source AI Ltd is registered with the Information Commissioner's Office.
Other documents: Subscription terms · Data processing agreement · Security statement · Acceptable use policy