Arnaud Soullie is a Senior Security Consultant at Solucom, a French management and IT consulting company. He works on all kinds of security audits and penetration tests. He has a specific interest in Windows Active Directory domains security, and likes to play with hashes and Kerberos tickets. He gave a talk at a French conference on this topic (JSSI 2014). He has also been working on SCADA systems for three years, performing security audits, penetration tests, and programming PLCs.