Abnormal AI

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Read 93 Abnormal AI reviews and testimonials from customers, explore 70 case studies and customer success stories, and watch 26 customer videos to see why companies chose Abnormal AI as their Email Security Software

Abnormal AI is the leading AI-native human behavior security platform, leveraging machine learning to stop sophisticated inbound attacks and detect compromised accounts across email and connected applications. The anomaly detection engine leverages contextual signals to analyze the risk of every cloud email event-detecting and blocking sophisticated, socially-engineered attacks that target human vulnerability. Abnormal is designed to be deployed in minutes via an API integration with Microsoft 365 or Google Workspace, unlocking the full value of the platform instantly. Additional protection is available for Slack, Workday, ServiceNow, Zoom, and multiple other cloud applications. Abnormal is currently trusted by more than 3,200 organizations, including 25% of the Fortune 500, as it continues to redefine how cybersecurity works in the age of AI.

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Customer Rating Review Scorebased on 1481 reference ratings
4.8/5.0 (1481)
  • Top Rated Software 2025 2025
    2025Top Rated Software Award
  • Market Leader 2024 2024
    Fall 2024Market LeaderEmail Security Software

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Featured Testimonials

  • “Even after fine-tuning M365 to be as aggressive as possible without kicking out every email, advanced attacks got through. Abnormal stops those advanced attacks. It’s like MS Defender is our hockey defense, and Abnormal is a really good goalie.”

  • “Threat actors are already using AI, so we use Abnormal's human behavior AI to protect our email ecosystem and its data. When Abnormal makes a fast, accurate decision about an email, based on tens of thousands of threat signals, we're doing our customers a service and protecting ourselves.”

  • “We work in difficult environments where the cybersecurity risks are high. The children and families we work with, our staff, and our partners need to know their data is safe with us. Abnormal plays a huge part in our ability to deliver on that mission.”

Featured Case Studies

  • Stanmore Resources Transforms Its Security Operations with Human Behaviour AI

  • Comfort Systems USA Builds Its Business More Securely with Abnormal

  • Boohoo Fashions a New Email Security Ethos with Abnormal

Featured Customer Videos

Additional Abnormal AI Information & Resources

Read Abnormal AI Reviews, Testimonials & Customer References from 93 real Abnormal AI customers.

Browse Abnormal AI Case Studies, Customer Success Stories, & Customer References from 70 businesses that use Abnormal AI.

Watch Abnormal AI Customer Videos to learn why 26 businesses chose Abnormal AI.