Featured stories

Dor Yardeni is the Director of Security Research at Varonis, leading the team responsible for the detection engine that protects thousands of customers worldwide. With more than a decade of experience in cybersecurity, Dor specializes in red teaming, incident response, and detection engineering. His work focuses on data‑driven research, including building advanced threat detection models, reporting vulnerabilities in critical infrastructure systems, and investigating large‑scale ransomware incidents.

Rotem Tsadok leads Security Operations and Forensics at Varonis, directing investigations into advanced threats targeting sensitive data across hybrid environments. With deep blue and red-team expertise, he blends adversary emulation and incident response strategy with hands-on execution to guide complex technical and customer-facing teams. He has driven enterprise-scale initiatives that strengthen security posture and accelerate business impact. A dynamic speaker with 15+ years in the field, Rotem delivers practitioner-focused sessions packed with real-world tactics and lessons learned.

Yogev Madar is a Director of Security Research at Varonis, leading teams that drive advanced threat and product‑focused security research across cloud, data, and identity domains. He leads cross‑functional initiatives with engineering groups and directs research efforts to uncover novel vulnerabilities and attack techniques in major cloud platforms, translating real‑world attacker behavior and customer risk into actionable product outcomes. With a background in offensive security research, Yogev brings an attacker’s mindset to defensive strategy, while focusing today on research leadership, mentorship, and building scalable security capabilities that directly support Varonis’ product innovation.

Chen Levy Ben Aroy is a distinguished cybersecurity leader with a proven track record in cloud security, penetration testing, and red teaming. As a Cloud Security Research Team Lead at Varonis, Chen spearheads cutting-edge security research and innovation across multiple cloud-providers and platforms. His previous roles at well-known enterprises, such as Prosche Digital and ABInbev, showcased his expertise in advanced malware development and strategic project management. With a robust background in a wide array of cybersecurity domains, Chen's visionary approach and technical acumen make him a sought-after expert in the industry.

Joe is a passionate and dedicated blue-teamer with experience in a wide array of specialties such as Detection Engineering, Threat Hunting, Incident Response, and Cyber Intelligence. He currently leads Varonis’ Forensics group, a team primarily assisting customers with their response to critical breach events, for North Amera, Europe, and Australia. His interests and experience include reverse engineering, detection engineering, threat hunting, compromise assessment, threat deception and tool development for both red and blue team functionalities.

Mark Vaitzman is a Security Research Team Leader at Varonis, a leader in data security. As a passionate cybersecurity expert, Mark holds extensive experience in leading security threat and research teams in various cybersecurity companies, analyzing emerging threats, incident response and developing innovative solutions. He is also a lecturer at Cyber Security College, sharing his knowledge and shaping the next generation of cybersecurity professionals. Mark previously presented at CrestCon, DeepSec, and Black Hat USA. In his free time, he likes sailing in the sea and riding a motorcycle.

Tal Peleg, also known as TLP, is a senior security researcher and cloud security team lead at Varonis. He is a full-stack hacker with experience in malware analysis, Windows domains, SaaS applications, and cloud infrastructure. His research is currently focused on cloud applications, APIs, and agentic applications.