Abnormal AI

What the company sells

Abnormal AI sells a behavioral analytics platform that protects email and identity systems and monitors use of AI tools and agents, with separate modules for account takeover detection, identity threat protection and AI agent security. It is headquartered in San Francisco and was founded in 2018 by Evan Reiser and Sanjay Jeyakumar. The company is privately held and raised a $250 million Series D round in August 2024 at a $5.1 billion valuation.

Categories

• Email security (primary category)
• Identity threat detection and response
• Workforce AI usage security
• AI model and agent security

Headquarters

San Francisco, United States

Founded

2018

Ownership

Privately held

Website

abnormal.ai

Products and services

• Account Takeover Protection

  Detects compromised email and identity accounts by analyzing behavioral anomalies.

• Identity Threat Protection

  Correlates signals across identity systems to contain threats before and after a user authenticates.

• Posture Management

  Flags risky configuration issues across an organization's email platform.

• AI Governance

  Discovers unsanctioned use of AI tools across an organization and reports on whether that use is governed.

• AI Cloud Security

  Detects AI-driven attacks against cloud identities and workloads and contains them under existing response policies.

• AI Agent Security

  Keeps an inventory of an organization's production AI agents and checks that each one behaves as intended.

Sources

1. Abnormal AIPublished November 19, 2019 · Tier A: the company, a regulator or a filing
2. Abnormal AIPublished August 6, 2024 · Tier A: the company, a regulator or a filing
3. Abnormal AIUndated page, accessed September 27, 2026 · Tier A: the company, a regulator or a filing

Recorded September 27, 2026 from the sources above. Descriptions are in our own words; we do not rank or recommend vendors, and no vendor pays to be listed or to change what we write. Disclosure: until the publisher confirms it has no business relationship with this company, treat one as possible (how the network works). Spot a factual error? Request a correction.