Abnormal Security Raises $250M in Series D Funding, Valued at $5.1B

Abnormal Security, a San Francisco-based cybersecurity startup, has successfully closed a $250 million Series D funding round. This latest investment round, which now values the company at $5.1 billion, was led by Wellington Management with participation from existing investors, including Greylock Partners, Menlo Ventures, Insight Partners, and the Falcon Fund.

Since its establishment in 2018, Abnormal has been focused on leveraging machine learning and AI to understand human behavior and stop attacks across email and connected applications. The startup has raised a total of nearly $546 million, with plans to invest further in its AI platform to protect more individuals across various applications.

Abnormal Security's success is attributed to its unique approach in understanding human behavior and its significant market presence, boasting more than 2,400 customers, including notable Fortune 500 companies. The company's focus on protecting humans from cyber threats through AI has positioned it as one of the fastest-growing cybersecurity companies.