Abnormal Security Raises $210 Million Series C, Reaches $4 Billion Valuation

San Francisco – May 10, 2022 – Cooley advised Abnormal Security, a leading artificial intelligence-based cloud-native email security platform, on its $210 million Series C financing round, which brings the company’s valuation to $4 billion. Lawyers Josh Seidenfeld, Nan Yang, Rachel Lydon and Kaavya Gowda led the Cooley team advising Abnormal Security.

The financing round was led by Insight Partners, with participation from Greylock Partners and Menlo Ventures, and builds upon a record-setting year for Abnormal Security that included tripling its annual recurring revenue, doubling its employee headcount and unveiling its next-generation Integrated Cloud Email Security platform.

“The current investment will allow us to accelerate our AI platform innovation to better protect our customers and continue our growth in Europe, Asia and Japan,” Evan Reiser, CEO and co-founder of Abnormal Security, said in a press release.

Based in San Francisco, Abnormal Security leverages AI-based behavioral data science to stop socially engineered and never-seen-before email attacks that evade traditional secure email gateways. Abnormal Security precisely detects and protects against the widest range of attacks, including phishing, malware, ransomware, social engineering, spam and graymail, and supply chain, business email and internal account compromise. The company’s platform delivers inbound email security, internal and external account takeover protection, and full security operations center automation.

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