Privacy Policy
Privacy-by-design meets blockchain transparency. Learn how we protect your data using zero-knowledge proofs and selective disclosure.
Effective February 24, 2026
HalalFi commits to protecting your privacy on our Sharia-compliant blockchain platform. This policy details how we handle personal data amid blockchain's public, immutable nature using privacy-by-design, zero-knowledge proofs (ZKPs), and selective disclosure to minimize exposure while enabling compliant operations.
Information We Collect
What on-chain data do we collect?
Pseudonymous wallet addresses, transaction hashes, and smart contract events. This data is public by design and immutable on the blockchain.
What off-chain data do we store?
Potential KYB details (Investee Company Name, ID and Docs, address) stored encrypted off-chain. Zero-knowledge proofs (ZKPs) prove compliance without revealing data.
What usage data do we track?
IP addresses (anonymized) and platform interactions. No central logs—decentralized nodes handle syncing.
How We Use Your Data
How do we verify identity?
KYC/AML via ZKP verifiers (e.g., prove age >18 without sharing date of birth).
How are smart contracts executed?
Mudarabah execution and profit distribution via audited smart contracts.
How are disputes resolved?
Resolved on-chain with oracle-fed arbitration.
Do you use data for analytics?
Aggregated analytics only—no personal profiling. Opt-in only for notifications.
Data Sharing & Transparency
Who has access to my data?
Service providers (e.g., node operators) see only necessary encrypted data under Data Processing Agreements (DPAs).
Is blockchain data public?
Transactions are public and pseudonymous. We advise wallet best practices (e.g., using fresh addresses).
Do you share data with authorities?
Disclosed only under court order—no proactive sales of data.
How do you handle cross-border transfers?
Standard Contractual Clauses (SCCs) and ZKPs ensure data adequacy.
Security Measures
How is data encrypted?
AES-256 and ECDSA for off-chain data; immutable on-chain audits.
What are Zero-Knowledge Proofs?
ZKPs/SNARKs verify facts (e.g., Sharia compliance) without revealing underlying data.
How is governance secured?
Multi-signature wallets and DAOs prevent single-point failures.
Are smart contracts audited?
Regular audits via ImmuneFi for smart contracts with active bug bounties.
Your Privacy Rights
Can I access my data?
Query on-chain data and request off-chain exports anytime.
Can I delete my data?
Off-chain deletion available (on-chain transactions are immutable—pseudonymity advised).
Can I export my data?
Download your data via wallet explorers.
Can I opt-out of processing?
Opt-out of non-essential processing at any time.
Questions About Your Privacy?
Reach out through our in-app support, governance forum, or email us directly.
info@halalfi.xyz