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Evan Reiser is the Founder and CEO of Abnormal AI, an AI-powered cybersecurity platform. A visionary technology executive, he has built multiple successful startups, including AdStack and TellApart. With expertise in AI, behavioral profiling, and cybersecurity, Reiser has transformed how organizations protect against modern threats, emphasizing innovation, speed, and AI-native solutions to stay ahead of attackers worldwide.
Evan Reiser studied at Rensselaer Polytechnic Institute, earning a BS in Computer Systems Engineering with a focus on Computer Science. He developed strong foundations in software design, data structures, networking, and experimental systems. From an early stage, he cultivated a passion for technology, learning continuously across multiple industries and building skills in AI, cybersecurity, and product management that would shape his future career.
Evan Reiser began his career building startups and working in technology roles, including AdStack, TellApart, and Twitter’s Core Ads team. In 2018, he founded Abnormal AI, leading its growth as a cybersecurity leader. Reiser specializes in AI-powered security, behavioral analysis, and product management, consistently focusing on innovation, building high-performing teams, and applying AI solutions to solve real-world enterprise cybersecurity challenges.
Abnormal AI safeguards enterprises with human-centric intelligence, autonomous defenses, and AI-driven tools, optimizing workflows, enhancing security, and ensuring resilient cloud, email, and operational performance.
Email Defense: Abnormal AI autonomously triages, investigates, and remediates emails, providing continuous protection, personalized guidance, and seamless integration to stop phishing, spam, and business email compromise.
Account Protection: Abnormal AI monitors cloud apps, detects account takeovers, investigates threats, enforces security policies, reduces SOC workload, and prevents malicious attacks in real time.
AI Development: Abnormal AI provides developer tools to quickly build internal solutions, streamline workflows, enhance support, deploy AI-native products, and improve operational efficiency.
Agent Platform: Abnormal AI enables engineers and AI agents to build, test, deploy services rapidly, standardize code, streamline infrastructure, and accelerate secure innovation efficiently.
SLA Boost: Abnormal AI automates workflows, optimizes staffing, and enhances SLA performance, saving hours weekly while improving team efficiency, accuracy, and overall operational impact.
Threat Evaluation: Abnormal AI monitors Microsoft 365, detects misconfigurations, prioritizes risks, and provides step-by-step remediation, merging AI evaluation with real-time threat intelligence to ensure resilience.
Under Evan Reiser’s leadership, Abnormal AI achieved recognition in the Gartner Magic Quadrant for Email Security and the Fortune Cyber 60 list. He successfully scaled multiple startups, including the acquisition of AdStack by TellApart. Reiser has raised significant funding, driven enterprise adoption of AI-native cybersecurity platforms, and mentored the next generation of AI and security leaders, establishing a reputation for innovation and operational excellence.
Currently, Evan Reiser does not appear to have any notable personal controversies. He is recognized for his leadership in advancing AI-driven cybersecurity through Abnormal AI, focusing on innovative solutions that protect organizations while fostering a human-centric approach to security.
