# Abnormal AI

**Source:** https://www.startuphub.ai/startups/abnormal-ai
**Profile type:** Startup

> AI-native human behavior security platform protecting against sophisticated email and cloud application attacks.

## About

Abnormal AI (formerly Abnormal Security) is a cybersecurity company that uses AI to protect enterprises from advanced email and cloud-based attacks, including business email compromise (BEC), vendor fraud, and account takeovers. Founded in 2018, the company's platform leverages behavioral AI to understand known good behavior and detect anomalies, stopping sophisticated attacks that bypass traditional security solutions. Abnormal AI aims to provide comprehensive protection for modern cloud communication and collaboration environments, helping organizations secure their digital assets and prevent financial losses.

## Key facts

- **Slug:** abnormal-ai
- **Website:** https://abnormal.ai
- **Location:** Las Vegas, USA
- **Founded:** 2018-01-01
- **Operating status:** Active
- **Total funding:** $552M
- **Sectors / tags:** Cybersecurity, Threat Detection, Endpoint Security, Cloud Security, DevSecOps

## StartupHub.ai scores

- **Ahrefs DR:** 77/100
- **Agent Readiness:** D (42/100)
- **Site Speed:** 37/100

## Funding rounds

| Date | Round | Amount | Lead investors |
| --- | --- | --- | --- |
| 6 Aug 2024 | [Series D](https://www.startuphub.ai/investment_rounds/abnormal-ai-series-d-2024) | $250M | [Wellington Management Company LLP](https://www.startuphub.ai/investors/wellingtontotalreturnsolutionscayman-msigevc7), [Insight Partners](https://www.startuphub.ai/investors/insight-venture-partners), [Menlo Ventures](https://www.startuphub.ai/investors/menlo-ventures) |
| 29 Jun 2021 | [Series C](https://www.startuphub.ai/investment_rounds/abnormal-ai-series-c-2021) | $213M | [Insight Partners](https://www.startuphub.ai/investors/insight-venture-partners) |
| 28 Apr 2020 | [Series A](https://www.startuphub.ai/investment_rounds/abnormal-ai-series-a-2020) | $50M | [Greylock Partners](https://www.startuphub.ai/investors/greylock-partners) |
| 19 Nov 2019 | [Series A](https://www.startuphub.ai/investment_rounds/abnormal-ai-series-a-2019) | $24M | [Greylock Partners](https://www.startuphub.ai/investors/greylock-partners) |
| 15 May 2019 | [Seed](https://www.startuphub.ai/investment_rounds/abnormal-ai-seed-2019) | $15M | [Menlo Ventures](https://www.startuphub.ai/investors/menlo-ventures) |

## Tech stack

Detected on abnormal.ai, last scanned 2026-10-15.

- **Frontend:** Next.js, Tailwind CSS
- **Auth:** Okta
- **CDN:** Vercel
- **Email provider:** Google Workspace
- **Cookie consent:** Osano
- **Affiliate program:** Self-hosted affiliate

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