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Andrew Leonov is a seasoned professional with extensive experience in information security and corporate resilience. Since August 2015, Andrew has held multiple leadership roles at Semrush, including Director of Corporate Resilience and Director of Security, overseeing product security initiatives, office safety measures, and educational programs for the developer department. In addition to this, Andrew has been self-employed as a Web Application Security Researcher since 2007, conducting audits, vulnerability assessments, and providing security consulting to various clients. Andrew's background also includes project management for a traffic monetization initiative and a master's degree in Electronic Warfare from Baltic State Technical University.