Security Experts:

Connect with us

Hi, what are you looking for?

SecurityWeekSecurityWeek

Cybersecurity Funding

Email Security Firm Abnormal Security Raises $210 Million at $4 Billion Valuation

Email security startup Abnormal Security announced today that it has reached a $4 billion valuation after raising $210 million in a Series C investment, which brings the total raised by the AI-focused cybersecurity company to $285 million.

Email security startup Abnormal Security announced today that it has reached a $4 billion valuation after raising $210 million in a Series C investment, which brings the total raised by the AI-focused cybersecurity company to $285 million.

The fresh funding round was led by Insight Partners, with additional investment from Greylock Partners and Menlo Ventures.

Abnormal Security LogoFounded in 2018, and emerging from stealth mode in November 2019, the San Francisco-based firm leverages artificial intelligence to detect abnormal behavior and stop threats such as business email compromise (BEC) before they can reach the inbox.

Its engine analyzes and correlates user behavior, business context, and relationships to prevent socially-engineered attacks, and provides users with transparency on why an email was blocked.

Abnormal Security CEO and co-founder Evan Reiser says the new funds will help the company accelerate product development and invest in growth across Europe, Asia, and Japan.

The company was founded by Reiser and Sanjay Jeyakumar, who serves as CTO. Reiser and Jeyakumar previously worked on the development and operating of Twitter’s ad engine. The Abnormal Security team also includes people who previously worked for Twitter, Google, Amazon, Palo Alto Networks, Proofpoint, FireEye and Duo Security.

The company raised $50 million through a Series B round in late 2020.

Abnormal Security will be participating in SecurityWeek’s Threat Intelligence Summit, taking place next week as a virutal event. 

Related: Zero Trust VPN Company Tailscale Raises $100 Million

Related: Application Security Firm ShiftLeft Raises $29 Million

Related: Smallstep Raises $26 Million for Automated Certificate Management Platform

Related: Data Security Firm Veza Emerges From Stealth With $110 Million in Funding

Written By

Ionut Arghire is an international correspondent for SecurityWeek.

Click to comment

Daily Briefing Newsletter

Subscribe to the SecurityWeek Email Briefing to stay informed on the latest threats, trends, and technology, along with insightful columns from industry experts.

Join this webinar to learn best practices that organizations can use to improve both their resilience to new threats and their response times to incidents.

Register

Join this live webinar as we explore the potential security threats that can arise when third parties are granted access to a sensitive data or systems.

Register

Expert Insights

Related Content

Application Security

Cycode, a startup that provides solutions for protecting software source code, emerged from stealth mode on Tuesday with $4.6 million in seed funding.

Cloud Security

Microsoft and Proofpoint are warning organizations that use cloud services about a recent consent phishing attack that abused Microsoft’s ‘verified publisher’ status.

Cybersecurity Funding

SecurityWeek investigates how political/economic conditions will affect venture capital funding for cybersecurity firms during 2023.

Funding/M&A

Twenty-one cybersecurity-related M&A deals were announced in December 2022.

Funding/M&A

More than 450 cybersecurity-related mergers and acquisitions were announced in 2022, according to an analysis conducted by SecurityWeek

Funding/M&A

Forty cybersecurity-related M&A deals were announced in January 2023.

Cybersecurity Funding

Network security provider Corsa Security last week announced that it has raised $10 million from Roadmap Capital. To date, the company has raised $50...