Opportunity makes a cybercriminal, and this is truer than ever during a critical and time-sensitive Active Directory migration when a lot of doors are swinging open. Personnel attrition due to an M&A, integrating with legacy systems, and rushed timelines create ample opportunities for attackers to target your organization. Legacy migration methodologies have historically required opening up the environment to significant security risks, including ransomware attacks, SIDHistory injection, elevated permissions, Group policy hijacking and more. This session will focus on the security missteps to avoid before, during, and even after an AD migration project so that it doesn’t become a resume updating project. We’ll look at real-world examples and give helpful advice to: • Avoid M&A IT integration missteps • Protect yourself from security breaches • Achieve data security • Reap the benefits you expect from your M&A • Ransomware attacks • SIDHistory Injection • Elevated permissions • Group Policy hijacking • And more.