Multi-Tenant
The ECC Excuse Is Dead: A Hardening Guide for Multi-Tenant GPU Infrastructure After GPUThor
For four months, 'enable ECC' was the official fix for GPU Rowhammer. GPUThor just showed that advice was wrong. Here's what to actually change on GPU fleets that run untrusted CUDA code from more than one tenant.
The Tenant Boundary Is a Fiction: Inside 2026's Cloud Cross-Tenant Bug Class
Five major cross-tenant breaks in twelve months — Cosmos DB, Vertex AI, Entra ID, AKS Backup — share one root cause: a privileged control-plane identity that trusts a customer-supplied name, key, or token it should never have accepted. Here's the pattern, and what to actually do about it.
CosmosEscape: Gremlin Sandbox Escape Exposed a Master Key to Every Azure Cosmos DB Database
Wiz Research chained a .NET reflection bypass in Cosmos DB's Gremlin API into code execution on Microsoft's multi-tenant gateway, recovering a platform-wide signing key that could pull the primary key for any customer's database.