Viktoriia Reitsenshtein is a senior security consultant at K2 Integrity/Leviathan Security Group. She provides security architecture guidance and performs black-, gray-, and white-box penetration testing of applications. Her work also includes security research and development, as well as training and mentoring junior security consultants. Her technical expertise spans web and mobile application penetration testing, cloud security, and code review, informed by a strong background in practical analysis and real-world threat response.
Before joining K2 Integrity/Leviathan Security Group, Viktoriia served as a cybersecurity analyst on the incident response team at Cyren, where she focused on mitigating phishing and malware threats affecting users. She previously worked as a malware analyst at NioGuard, conducting both static and dynamic analysis of malware samples.
Committed to the security community, Viktoriia is an active conference participant, involved in collaborative research and capture-the-flag competitions. She regularly contributes to professional discourse by publishing testing methodologies and vulnerability research, including work on a LibEvent library memory leak, Angular application testing, and Ruby on Rails security testing.
Viktoriia holds an M.S. and B.S. in information security from the Institute of Physics and Technology at the National Technical University of Ukraine.