crypto compliance guide.
The Challenge
Financial institutions and crypto exchanges increasingly process data containing cryptocurrency wallet addresses (Bitcoin, Ethereum, and others), SWIFT/BIC codes, and cryptocurrency transaction IDs alongside traditional financial identifiers. These are PII or quasi-PII in financial regulatory contexts — they can identify individuals or entities and must be protected under GDPR (where wallet addresses linked to individuals are personal data), BSA, and MiCA (EU crypto regulation). Most generic PII tools have no awareness of cryptocurrency address formats.
By the Numbers
- GDPR Article 32(1)(a) requires pseudonymization and encryption as baseline
- 56% of GDPR fines cite inadequate encryption
- maximum penalty: €20M or 4% global annual revenue (GDPR Art. 83)
Real-World Scenario
A European crypto exchange processes KYC documents that include customer bank account IBANs, cryptocurrency wallet addresses used for initial funding, and SWIFT codes for wire transfers. A single anonym.legal anonymization pass detects and handles all three financial identifier types — no separate tools or custom patterns required. MiCA compliance for crypto asset PII is covered alongside GDPR for traditional financial PII.
Technical Approach
260+ entity types include cryptocurrency addresses (Bitcoin, Ethereum, and others), SWIFT codes, BICs, IBANs, bank account numbers, and routing numbers. Financial teams get comprehensive coverage for both traditional and crypto financial identifiers in a single anonymization pass.
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