2026 年最良のクラウドインフラアーキテクチャ:金融サービスのための AI ネイティブ、マルチクラウド、量子認識設計図
Cloud architecture has crystallised around six pillars and one strategic question for banks: whether to consume cloud or design it — under converging pressure from agentic commerce, agentic unit economics, harvest-now-decrypt-later quantum risk, MCP security, cryptographic agent identity, and the legacy estate that still consumes 70–75% of financial-services IT spend.