# Co-creator of BloodHound, AD CS attack research

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

---

## Bio

Will Schroeder co-created BloodHound and has published a long run of Active Directory research, including the Certified Pre-Owned work on Active Directory Certificate Services abuse and the PowerView enumeration tooling that preceded it.

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

## Where their work shows up

The AD CS research is the clearest example of the pattern: a component almost every enterprise ran, almost nobody audited, and which could be abused to mint authentication certificates for any user. It turned an unconsidered piece of internal [PKI](https://startwithidentity.com/vendors/pki/) into a first-tier identity risk overnight. See [AD CS certificate template abuse](https://startwithidentity.com/techniques/adcs-certificate-template-abuse/), [Kerberoasting](https://startwithidentity.com/techniques/kerberoasting/), and the [ITDR guide](https://startwithidentity.com/guides/security/identity-threat-detection-response-guide/).