Forensic Integrity & The Zanga Ledger

Zanga is built on the principle of forensic-first engineering. Unlike traditional payment routers, Zanga (a product of parent group BigBill Systems) maintains a dual-entry immutable ledger that ensures every Ngwe is accounted for.

The Zanga Watchdog

Every transaction passing through Zanga is monitored by the Zanga Watchdog, an asynchronous integrity service that performs:

  1. Boundary Validation: Ensures funds never cross tenant-isolation boundaries.
  2. Immutability Checks: Prevents retroactive modification of transaction history.
  3. Forensic Log Chaining: Each transaction carries a cryptographic hash of the previous state, making the ledger verifiable at any point in time.

Audit Trails for Investors & Regulators

Our system "speaks for itself" through transparency:

  • Audit-ID Lifecycle: Every API call is tagged with a unique Audit-ID that persists from the initial request to the final bank/carrier settlement notification.
  • Regulatory Reporting: Zanga automatically flags transactions exceeding Financial Intelligence Centre (FIC) thresholds, ensuring frictionless compliance.
  • Zero-Sum Validation: The Zanga core performs real-time balance sheet checks to ensure the sum of all tenant balances exactly matches the funds held in regulated trust accounts.

Technical Fortress

  • AES-256-GCM: All sensitive financial data is encrypted using authenticated encryption with associated data.
  • TLS 1.3: Zero legacy support for insecure transport protocols.
  • Hardware Isolation: Cryptographic keys are managed within secure enclaves in our production environments.