FSI Sydney 2026: How Japan's Largest Trust Bank Protects "Trust" with Speed, Culture, and AWS
Sumitomo Mitsui Trust Bank argues development agility and cybersecurity are not a tradeoff on AWS
“development agility and cyber security are not a tradeoff”
Japan's largest trust bank shared how consolidating 1900+ engineers onto AWS with standardized cloud foundations allowed them to respond to major vulnerabilities in weeks rather than months. The CISO's central thesis is that a simple, standardized cloud foundation increases development speed and security simultaneously rather than trading one for the other. This is a practitioner case study with limited novel AI signal — the AI reference is passing and the core insight is about cloud security posture, not AI specifically.