# Data Retention & Cookies {% hint style="info" %} Operator and jurisdiction: BASIS is operated by BASIS DIGITAL INFRASTRUCTURE LTD, a Seychelles IBC (LEI: [254900IX2F2KCWNSSS64](https://lei.bloomberg.com/leis/view/254900IX2F2KCWNSSS64)). {% endhint %} Last Updated: April 2026 This page supplements the [Privacy Notice](/legal-and-corporate/privacy-notice.md) with detailed information about data retention periods and the platform's cookie practices. *** ## Part 1: Data Retention ### 1.1 Retention Policy BASIS DIGITAL INFRASTRUCTURE LTD retains personal data only for as long as necessary to fulfill the purpose for which it was collected, comply with legal obligations, or support legitimate business operations. When data is no longer needed, it is securely deleted or anonymized. ### 1.2 Retention Schedule | Data Category | Retention Period | Purpose | | --------------------------------------------------------------------------- | ------------------------------------------ | ------------------------------------------- | | Account / Identity data (email address, authentication records) | Duration of account + 1 year after closure | Account management and security audit trail | | Transaction & staking records (deposits, withdrawals, swaps, reward claims) | 5 years from transaction date | Legal and regulatory compliance (AML/CTF) | | Referral network & reward records | 5 years from event date | Legal and regulatory compliance | | Technical / server logs (IP addresses, access logs) | 90 days (rolling) | Security monitoring and fraud prevention | | Customer support communications | 2 years from last interaction | Service quality and dispute resolution | | KYC documentation (if applicable) | As required by applicable law | Regulatory compliance | | Cookie data (analytics) | As set by cookie, typically 12–24 months | Platform analytics and improvement | ### 1.3 Blockchain Data Blockchain transaction data is permanently immutable by the nature of the technology. Data recorded on-chain, such as wallet addresses, transaction hashes, and block timestamps, cannot be deleted or modified. This is an inherent property of blockchain systems, not a discretionary choice by BASIS. ### 1.4 Deletion Requests To exercise your Right to Erasure (Right to be Forgotten) under applicable frameworks including the GDPR, or to request deletion of personal data held by BASIS, contact . BASIS will generally: 1. Acknowledge your request within 5 business days 2. Process eligible deletion within 30 calendar days 3. Confirm completion in writing {% hint style="warning" %} Deletion requests cannot be fulfilled for: * data required by applicable law, including AML records * data already recorded on a public blockchain * data necessary to resolve an active dispute {% endhint %} *** ## Part 2: Cookies Policy ### 2.1 What Are Cookies Cookies are small text files stored on your device when you visit a website. They help the platform recognize your device, maintain sessions, and improve your experience. ### 2.2 Cookie Categories We Use | Category | Purpose | Examples | Retention | | ---------- | ----------------------------------------------------------------------- | ---------------------------------------- | --------------------------------- | | Essential | Platform functionality, including session management and authentication | Session token, CSRF token | Session, deleted on browser close | | Analytical | Understand platform usage patterns in anonymized form | Page views, click data, session duration | 12 months | | Preference | Remember your settings | UI theme, selected display preferences | 12 months | {% hint style="info" %} BASIS does not use advertising or tracking cookies for third-party ad networks, and does not sell cookie data. {% endhint %} ### 2.3 Third-Party Services BASIS uses the following third-party services that may set their own cookies: | Service | Purpose | Privacy Policy | | ------------------------ | ----------------------------- | ------------------------------------------------------------------ | | Privy (authentication) | Wallet and session management | [privy.io/privacy](https://docs.privy.io/legal/privacy-policy) | | Google Analytics 4 (GA4) | Anonymized usage statistics | [policies.google.com/privacy](https://policies.google.com/privacy) | ### 2.4 Managing Cookies You can control cookies through your browser settings: * View stored cookies: Browser Settings → Privacy → Cookies * Delete existing cookies: Browser Settings → Clear Browsing Data * Block future cookies: Browser Settings → Privacy → Block Cookies Popular browser guides: * [Chrome](https://support.google.com/chrome/answer/95647) * [Firefox](https://support.mozilla.org/en-US/kb/enable-and-disable-cookies-website-preferences) * [Safari](https://support.apple.com/guide/safari/manage-cookies-sfri11471/mac) * [Edge](https://support.microsoft.com/en-us/windows/microsoft-edge-browsing-data-and-privacy) {% hint style="warning" %} Disabling essential cookies will prevent you from logging in or using core platform functions. {% endhint %} ### 2.5 Cookie Consent When you first access the BASIS platform, you will be presented with a cookie consent notice. Essential cookies are used automatically because they are required for platform operation. You can accept or decline optional cookies, including analytics and preference cookies, at that time. You can change your consent choices at any time through the privacy settings on the platform. *** ## Contact For questions about data retention or cookies: BASIS DIGITAL INFRASTRUCTURE LTD\ Email: \ LEI: [254900IX2F2KCWNSSS64](https://lei.bloomberg.com/leis/view/254900IX2F2KCWNSSS64) --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://docs.basis.pro/legal-and-corporate/data-retention-and-cookies.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.