Last updated: May 2026
AlfaBrief collects minimal data to operate the service. This policy explains exactly what is collected, how it is used, which third parties receive it, and what rights you have over your information.
Email address
Collected when you subscribe to the newsletter or create an account. Used to deliver the daily brief and account-related communications. Stored by Clerk (authentication) and Ghost (newsletter platform).
Authentication data
Managed by Clerk. Includes your email, session tokens, and login activity. Clerk is the sole processor of this data — AlfaBrief does not store authentication credentials independently.
localStorage preferences
Your theme preference (light/dark) is stored locally in your browser using localStorage. This data never leaves your device and is not transmitted to any server.
IP address (rate limiting)
When you submit the subscribe form, your IP address is used for rate limiting (maximum 5 attempts per hour). This is held in server memory only and is not persisted to any database.
AlfaBrief uses the following third-party services. Each has its own privacy policy governing how they handle data they receive.
Clerk
Authentication provider
Email address, session tokens, login history
Privacy policy ↗TradingView
Embedded price charts
IP address, browser fingerprint (via TradingView widgets)
Privacy policy ↗Coinglass
Embedded liquidation heatmap
IP address, browser fingerprint (via Coinglass iframe)
Privacy policy ↗CoinGecko
Live price data API
Server-side API calls only — no user data transmitted
Privacy policy ↗Binance
Exchange flow data API
Server-side API calls only — no user data transmitted
Privacy policy ↗alternative.me
Fear & Greed Index API
Server-side API calls only — no user data transmitted
Privacy policy ↗Google Translate
Page translation widget
Page content, IP address, language preference (when translation is activated)
Privacy policy ↗AlfaBrief does not use first-party tracking cookies. The site uses localStorage solely to persist your theme preference across visits.
Clerk, the authentication provider, sets session cookies required to keep you logged in. These are functional cookies and cannot be disabled while using the account features.
Third-party embedded widgets (TradingView charts, Coinglass heatmap, Google Translate) may set their own cookies when those widgets are loaded. Refer to each provider's policy above for details.
Newsletter subscriptions: retained until you unsubscribe. Each email includes an unsubscribe link.
Account data (via Clerk): retained while your account is active. Deleted within 30 days of account deletion.
IP rate-limit data: held in server memory only. Cleared automatically every hour.
Under GDPR, CCPA, and similar regulations, you have the following rights:
Request a copy of the personal data we hold about you.
Request correction of inaccurate data.
Request deletion of your personal data. For account deletion, use the Settings page. For newsletter unsubscription, use the unsubscribe link in any email.
Object to processing of your data for marketing purposes.
Request your data in a portable format.
To exercise any of these rights, use the Settings page or contact us at the address below.
For any privacy-related request, question, or complaint, contact us at privacy@alfabrief.com. We will respond within 30 days.