Doppel Email Securityの一般提供を開始
ソーシャルエンジニアリング攻撃への反撃を可能にする、エージェント型メールセキュリティソリューション。検知だけでは不十分です。攻撃を阻止することが重要です。
Threat hunting and detection engineering
Steven Semrau
Applied Cyber Detections Leader
Steven leads Applied Cyber Detections at Doppel, combining hands-on threat hunting with detection engineering to identify phishing, impersonation, and malicious infrastructure.
About
Steven works across research, engineering, and customer teams to address coverage gaps and translate emerging threats into actionable detection logic.
Before joining Doppel, Steven conducted blockchain forensics and open-source intelligence (OSINT) investigations, tracing cryptocurrency activity and connecting digital identities and infrastructure to uncover illicit activity.
His work centers on making expert investigation repeatable, translating findings into detection rules, refining automated decision criteria, and diagnosing missed threats and false positives to improve the quality of Doppel’s AI-driven analysis.
