This Privacy Policy explains how Lefine collects, uses, and protects personal data when you visit the website, create solver tasks, authenticate, make payments, or use related digital delivery features.
This policy applies to the Lefine product and related services delivered through the website and crater-backed infrastructure.
We may collect account and contact data such as email address, username, and support correspondence.
We may collect technical information such as IP address, browser type, device information, operating system, session metadata, and security logs.
If you use passkeys or wallet-based authentication, we may process the identifiers and verification data necessary to operate those authentication flows.
We may process limited order and transaction data required to create tasks, generate payment links, confirm access, prevent abuse, and support customer requests.
Payment providers or payment infrastructure partners may process billing and payment details under their own legal terms and privacy practices.
We do not represent that all payment data is stored directly by Lefine; some information may be handled by external processors or infrastructure providers.
We use personal data to operate the product, authenticate users, deliver digital results, process support requests, improve reliability, and comply with legal obligations.
We may also use technical data for security monitoring, fraud prevention, service diagnostics, and aggregate product analytics.
We may share limited personal data with infrastructure, hosting, payment, communications, and security providers when this is necessary to operate the service.
We do not sell personal data to third parties.
We retain personal data only for as long as reasonably necessary to operate the service, maintain account access, resolve disputes, protect the platform, and satisfy legal, accounting, or compliance requirements.
Authentication records, order metadata, and support communications may be retained for operational continuity and security review.
Depending on applicable law, you may have rights to request access, correction, deletion, restriction, or objection regarding your personal data.
To make a privacy-related request, contact us using the email address listed on the Legal Information page.
We may update this Privacy Policy from time to time. Material changes will be reflected on this page with an updated effective date.