Tag

Multi-tenant

Articles about "Multi-tenant"

2 articles

Running Business Apps in Your Own Cloud Tenant: Access, Data Location, and Personal Data

If you are dropping a SaaS product and building the business app yourself, my view is that it usually runs better inside your own cloud environment, your own tenant. The fifth and final article in this series covers how that differs from multi-tenant SaaS, what you gain in identity, access, data integration, and audit logs, why "who can touch the data" rather than where it sits decides whether Japan's APPI treats a vendor as an entrusted party, why choosing a Tokyo region does not remove the duty to understand foreign rules, and how operational responsibility shifts to you. It draws on NIST, AWS, the Japanese Personal Information Protection Commission's Q&A and the 2026 APPI amendment, and ISO/IEC 27001.

2026-09-29Ryuta Hamamoto

ZEROCK

Why Tenant Isolation Breaks Later: 180,000 Meetings and One Missing Rule

A researcher published a finding that over 180,000 meeting records at the AI notetaker tl;dv were readable across tenants. The interesting part is not the scale. Of ten containers, nine were correctly locked and one was not. Here is what multi-tenancy means, why isolation decays over time, and how adding AI changes the shape of the leak.

2026-08-12Ryuta Hamamoto

2 articles

WARP

Running Business Apps in Your Own Cloud Tenant: Access, Data Location, and Personal Data

If you are dropping a SaaS product and building the business app yourself, my view is that it usually runs better inside your own cloud environment, your own tenant. The fifth and final article in this series covers how that differs from multi-tenant SaaS, what you gain in identity, access, data integration, and audit logs, why "who can touch the data" rather than where it sits decides whether Japan's APPI treats a vendor as an entrusted party, why choosing a Tokyo region does not remove the duty to understand foreign rules, and how operational responsibility shifts to you. It draws on NIST, AWS, the Japanese Personal Information Protection Commission's Q&A and the 2026 APPI amendment, and ISO/IEC 27001.

2026-09-29Ryuta Hamamoto

ZEROCK

Why Tenant Isolation Breaks Later: 180,000 Meetings and One Missing Rule

A researcher published a finding that over 180,000 meeting records at the AI notetaker tl;dv were readable across tenants. The interesting part is not the scale. Of ten containers, nine were correctly locked and one was not. Here is what multi-tenancy means, why isolation decays over time, and how adding AI changes the shape of the leak.

2026-08-12Ryuta Hamamoto