Articles en français — Sebastien Rousseau

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Six-pillar cloud architecture diagram for 2026 — AI-native, multi-cloud, serverless, edge, DevSecOps, and sustainable design, with CloudCDN edge research overlay

[UK DRAFT] The Best Cloud Infrastructure Architecture in 2026: An AI-Native, Multi-Cloud, Quantum-Aware Blueprint for Financial Services

Cloud architecture in 2026 has crystallised around six pillars: AI-native infrastructure, intelligent multi-cloud, serverless-first design with WebAssembly at the edge, edge computing, automated security with crypto-agility, and sustainable high-density operations. For banks, the question is whether to consume cloud or design it — under converging pressure from agentic commerce, agentic unit economics, harvest-now-decrypt-later quantum risk, MCP security and algorithmic contagion, cryptographic agent identity, continuous-treasury demands, and the EU AI Act.

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Agentic engineering architecture diagram for banks — spec-driven AI agents, governance control plane, quantum-safe substrate, and legacy mainframe modernisation flows

[UK DRAFT] Agentic Engineering for Banks: A 2026 Blueprint for the C-Suite and the Engineers Who Will Build It

2026-05-18 · Sebastien Rousseau

Agentic AI has crossed from pilot into production across global banking. 70% of institutions are using it to some degree; only one in five has a mature governance model. Meanwhile, autonomous adversaries are operating at machine speed, the legacy COBOL estate the new systems must interoperate with was written for the batch-processing assumptions of the 1960s, and the EU AI Act's août 2026 high-risk deadline is twelve weeks away. This is the engineering and governance position a bank needs to hold.

BlackRock tokenised money market fund architecture diagram — BRSRV OnChain Shares and BSTBL ERC-20 share class with GENIUS Act reserve flows

[UK DRAFT] Stablecoin Yield by Another Name: BlackRock's BRSRV and BSTBL Filings Decoded

2026-05-15 · Sebastien Rousseau

Stablecoins cannot pay yield under the GENIUS Act. On 8 May 2026, BlackRock filed two SEC registrations for products that solve this constraint by being regulated as money market funds rather than stablecoins — while behaving, in the wallet, like yield-bearing dollars. A close reading of BRSRV, BSTBL, and the OCC rulemaking they respond to.

Post-quantum cryptography migration roadmap diagram — corporate banking infrastructure transitioning from RSA to ML-KEM and ML-DSA

[UK DRAFT] Securing the Ledger: A Board-Level Guide to Post-Quantum Migration for Corporate Finance

2026-05-14 · Sebastien Rousseau

Quantum risk has moved from research curiosity to active regulatory mandate. With the G7 roadmap published in janvier 2026, the EU, UK, and ASD timelines clarified, and the BIS Project Leap proving feasibility at the central-bank level, the question for boards is no longer whether to migrate — it is whether the migration can be completed before the cryptographic shelf-life of today's data expires.

ISO 20022 pacs.008 structured address diagram — cross-border payment message fields with TwnNm and Ctry highlighted

[UK DRAFT] The novembre 2026 pacs.008 Structured-Address Deadline: A Six-Month View

2026-05-12 · Sebastien Rousseau

From novembre 2026, SWIFT CBPR+ requires structured postal addresses in cross-border payment messages. Unstructured address lines (AdrLine alone) will no longer be accepted for key party fields in pacs.008. At minimum, TwnNm and Ctry are required, with StrtNm and BldgNb or PstBx recommended. With six months to go, 65% of payment messages still contain unstructured addresses and 44% of banks remain behind schedule.