Bridging Clouds and Domains, Expanding Risks: An offensive and defensive journey across environments

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Presented at BSides Limburg 2026 by

Guillaume Bossiroy

Multi-cloud and hybrid identity setups are now the standard in enterprise environments. Connecting on-prem directories, cloud environments, and third-party systems improves management and visibility, enabling organizations to oversee their infrastructure more effectively. But in return, these connections blur long-standing trust boundaries and introduce new, often overlooked attack paths.