Fintech & Scale-ups: Passing Bank Security Audits
As Tier-1 global banks initiate their post-quantum migration programmes, third-party vendor risk assessments are undergoing radical changes. Under European DORA regulations and US Fed supervisory reviews, banks cannot certify their own perimeter without verifying the cryptographic agility of their fintech partners.
The Fintech Due Diligence Checklist
Audit Requirement 1
Cryptographic Supply-Chain Transparency
Can your engineering team produce an automated Cryptographic Bill of Materials (CBOM) for your APIs, mobile SDKs, and webhook gateways within 24 hours of an enterprise bank RFP?
Audit Requirement 2
Hybrid TLS 1.3 Ingress Support
Support for post-quantum key encapsulation (X25519 + ML-KEM-768) on partner API endpoints without degrading latency or breaking existing client libraries.
Practical Steps for Engineering Teams
- Eliminate Hardcoded Cryptography: Wrap all cipher and signature calls in agile abstractions so algorithms can be swapped via configuration flags.
- Audit Webhook Signing: Transition legacy HMAC-SHA1 or RSA webhook signatures to post-quantum signatures (ML-DSA) or modern key derivation functions.
- Embed Open Source Primitives: Integrate verified, zero-dependency Rust/WebAssembly libraries such as KyberLib for client-side key generation.
Preparing for a Tier-1 Bank RFP or Security Audit?
We review fintech cryptographic postures and prepare compliance dossiers for bank vendor reviews.
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