Financial systems cache trade data, KYC results, and credit scores in plaintext memory. Every cache read is an unaudited access to regulated financial data. Proof-based trust replaces exposure-based trust.
Every banking API today caches session tokens, trade confirmations, and authorization decisions in Redis. KYC results sit in plaintext memory. Credit scores are cached without provenance. AI-driven credit decisions produce outputs that no one can trace back to their inputs. This model worked when cache infrastructure was invisible plumbing. Two shifts make it unsustainable:
NIST CNSA 2.0 mandates post-quantum migration by 2030 for financial systems touching federal data. ML-DSA-65 signatures are 3,309 bytes vs 64 bytes for Ed25519 — a 50x increase. Cached session tokens, certificates, and signed trade data grow proportionally. Redis latency scales linearly with payload — at 3,309 bytes, each read costs 440us instead of 310us. At 100K trade verifications per second, that's 44 CPU-seconds of blocking per wall-clock second.
Credit scoring engines, fraud detection models, and algorithmic trading systems cache inference results for performance. But cached AI outputs are regulated data under SOX, FINRA, and the CFPB. A cached credit decision is a financial judgment. A cached fraud score triggers downstream actions. These need audit trails, provenance, and tamper-evidence. Redis provides none.
Redis stores every cached value in plaintext memory. No encryption at rest. No per-key access controls. No audit trail of who read what. No integrity verification. Trade data, KYC results, credit scores — all sitting in cleartext memory accessible to any process with a connection string.
SOX Section 404 requires internal controls over financial reporting — cached computation results have zero controls. FINRA Rule 4511 requires trade data retention with defined freshness windows — Redis TTL is best-effort, not enforceable. PCI DSS 4.0 Requirement 3.5 requires protecting stored cardholder data — Redis stores it in plaintext memory. KYC/AML results cached without provenance — no proof of which rules, which data, which version produced the decision.
Every financial regulator asks the same question: "Can you prove this cached value hasn't been modified since it was stored?" Your database has audit logging. Your application has access logs. But your cache? Redis has zero audit capability. Every cached trade result, every cached KYC decision, every cached credit score read is unlogged, untracked, and unverifiable. That's a finding waiting to happen.
Cachee changes the verification model. Instead of exposing financial data to verify it, Cachee stores signed, fingerprinted computation results that can be verified without reading the underlying data.
Prove eligibility without exposing full portfolio. The computation fingerprint proves the collateral check was performed against the correct data. The signature proves the result is authentic. The underlying portfolio details stay encrypted.
Cache the verification result, not the identity documents. "Accredited investor: PASS" is cached with a fingerprint binding it to the exact documents, rules version, and OFAC list that produced the decision. The PII never enters the cache layer.
AUDITLOG reconstructs any trade decision's full lifecycle from creation to current state. "What was the cached margin requirement at 2:14 PM?" is one command. Tamper-evident. Independently verifiable. Admissible.
Cache credit decisions with computation fingerprint binding them to exact model + rules + inputs. SHA3-256(applicant_data || credit_model_v3.1 || bureau_pull_2026-05-02) — change any input and the fingerprint invalidates. Stale decisions cannot be served.
The approval IS the proof. Every cached approval carries three independent PQ signatures, a computation fingerprint, and a hash-chained position in the audit log. No separate attestation step. The cache entry itself is the compliance artifact.
Enforceable freshness SLAs with a deterministic state machine: Active, Superseded, Expired. Not Redis TTL's best-effort eviction. When FINRA requires trade data freshness within defined windows, the state machine enforces it — not a hope that TTL fires on time.
Financial data integrity is no longer a policy. It's a mathematical property of the storage layer.
Run it yourself: brew install cachee && cachee-gold-demo
Reconstruct the exact state of any cached financial computation at any point in time. One command. When SOX auditors ask "what did the system compute at 2:14 PM?", the answer is AUDITLOG. Tamper-evident. Independently verifiable. Admissible.
Prove an investor passed KYC without exposing their identity documents. The computation fingerprint proves the check happened against specific rules and data. The signature proves the result is authentic. The underlying PII stays out of the cache layer entirely.
When a regulatory inquiry asks why a credit decision was made, the cached result carries its own provenance: which model, which version, which bureau data, which rules produced this output. No log archaeology. The cache entry is the audit artifact.
Settlement confirmations cached with computation fingerprints and three PQ signatures. Counterparties verify independently — no trusted third party required. The proof travels with the data. Verification works offline, air-gapped, or across jurisdictions.
CNSA 2.0 mandates PQ migration by 2030 for systems touching federal data. Banking systems processing federal payments, treasury operations, or government contracts will need PQ credentials. Cachee is already PQ-native — every entry signed by FIPS 204 (ML-DSA-65) and FIPS 205 (SLH-DSA) today. No migration required.
| Regulation | Requirement | Cachee Implementation |
|---|---|---|
| SOX Section 404 | Internal controls over financial reporting | Computation fingerprints, 3 PQ signatures, hash-chained audit log |
| FINRA Rule 4511 | Books and records retention | Tamper-evident AUDITLOG, temporal versioning, enforceable state machine |
| PCI DSS 4.0 Req 3.5 | Protect stored account data | In-process architecture, zero network exposure, signed entries |
| PCI DSS 4.0 Req 10 | Log and monitor all access | Hash-chained audit log, AUDITVERIFY integrity validation |
| GLBA Safeguards Rule | Protect customer financial information | Owner/Regulator/Auditor key types, per-key access controls |
| SEC Rule 17a-4 | Electronic recordkeeping | Immutable audit chain, WORM-equivalent via hash-chain integrity |
One architecture. Many manifestations.
Deploy Cachee in your VPC. Financial data never leaves your boundary.
Every value signed. Every access audited. Every result replayable.