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Abnormal Security announced that it raised $50 million in Series B venture capital funding. Led by Menlo Ventures, with participation from early investor Greylock, the round brings Abnormal’s total funding to $75 million.

Abnormal Security raises $50M to double the size of its machine learning and data science teams

A cybersecurity startup launched a new platform Tuesday designed to thwart sophisticated scams by identifying abnormal emailing behaviors. Aptly named Abnormal Security, the San Francisco startup aims to use behavior modeling and machine learning to root out suspicious emails that can cost companies big bucks.

Can machine learning stop sophisticated email scams? This cybersecurity company thinks so.

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The FBI has identified nearly 100 spoofed websites that use some incarnation of the agency's name. Fraudsters and other cybercriminals potentially could leverage for disinformation campaigns and credential theft.

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Funding, led by Menlo Ventures, will be used to accelerate enterprise adoption of AI-driven email security platform.

Abnormal Security Raises $50M in Series B Funding

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Abnormal AI provides advanced email security to prevent credential phishing, business email compromise, account takeover, and more.

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Abnormal Security — a next-generation email security company — announced that it raised $50 million in Series B funding led by Menlo Ventures.

Cloud Email Security Company Abnormal Security Secures $50 Million

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A phishing campaign targets universities, stealing credentials and Duo OTPs for real-time account takeover. Learn how it works and how to stop it.

Compromising Campus Accounts: Attackers Harvest Credentials and Duo OTPs for Account Takeover

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Abnormal AI received the highest scores possible in the Innovation and Roadmap criteria, the top score in the Strategy category, and above-average customer feedback.

Abnormal Named a Leader in The Forrester Wave™: Email, Messaging, And Collaboration Security Solutions, Q2 2025

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Discover insights from the latest research study on how security teams are leveraging AI to transform the security operations center (SOC)—boosting efficiency, reducing analyst burnout, and improving threat detection and response.

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Discover the eight biggest challenges in cloud email security and learn how to evaluate AI-powered solutions with a vendor-neutral framework built to stop modern threats.

The Essential Guide to Cloud Email Security

Cloud Email Security Company Abnormal Security Secures $50 Million

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