Abnormal Security
Abnormal Security is a cybersecurity company specializing in Email & Messaging Security, founded in 2018 and headquartered in San Francisco, United States. It has raised $534M in equity across 5 priced rounds, employs about 1,618 people, and is privately held.
#4Email & Messaging Security Pacesetter· Q3 2026updated Oct 11, 2026
Latest Abnormal Security news and company activity
What Abnormal Security did, dated — selected moves from the record, one per kind, newest first.
- Oct 2026Exec changeAbnormal AI Welcomes New Leadership and Team Members Across GTM, Engineering, and Support
- Oct 2026Customer winKnox County Schools Deploys Abnormal AI Security Mailbox for Email Triage
- Sep 2026Product launchAbnormal AI Expands Its AI Security Suite Powered by Its Behavioral Security Platform
- May 2022Mega round
Abnormal Security Momentum score
71/ 100climbing
Mandos Momentum blends hiring, funding, traffic and sentiment into one score out of 100. The score is free; the pillars behind it unlock in the platform.
Abnormal Security funding
Abnormal Security has raised $534M in priced equity. Its most recent round was a Series D in August 2024.
- Equity raised
- $534M5 priced rounds
- Last round
- Series DAug 2024
Abnormal Security employees and hiring
Abnormal Security has about 1,618 employees, up 1% over the last 30 days, with 59 open roles.
- Employees
- 1,618
- 30-day change
- +1%
- Open roles
- 59
Abnormal Security competitors
Security professionals most often compare Abnormal Security against KnowBe4, F5, and Sublime Security on cybersectools.com. 38 more are in the platform, with overlap scoring.
ranked by CybersecTools comparison demand, 90 days
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Abnormal Security CISO Score
How Abnormal Security reads to a CISO buyer: seven dimensions of the Mandos Framework, scored through the eyes of a security buyer.
