# Co-creator of BloodHound

Source: https://startwithidentity.com/experts/andy-robbins/
Last updated: 2026-09-20
License: content by Start with Identity. Cite the source URL.

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## Bio

Andy Robbins co-created BloodHound with Will Schroeder and Rohan Vazarkar, released at DEF CON 24, and led its extension from on-premises Active Directory into Azure and Entra ID. He is a principal product architect at SpecterOps.

Profile built from public project, conference, and company records.

## Where their work shows up

BloodHound's contribution is conceptual as much as technical: model an identity environment as a graph, and privilege escalation stops being a list of misconfigurations and becomes a shortest path between two nodes. Defenders had been auditing group membership one object at a time while attackers were reading the whole graph. Attack-path management as a product category, and the way [ITDR](https://startwithidentity.com/guides/fundamentals/what-is-itdr/) tools now present findings, both follow from that. See [orphaned account abuse](https://startwithidentity.com/techniques/orphaned-account-abuse/), [entitlement accumulation](https://startwithidentity.com/techniques/mover-entitlement-accumulation/), and the [best ITDR for Active Directory](https://startwithidentity.com/rankings/best-itdr-for-active-directory/) ranking.