AS

Abnormal Security

Application

AI-native email security platform that builds a behavioural baseline for every employee and vendor to detect and block phishing, business email compromise and account takeover that signature-based filters miss.

Total funding$536M

Valuation$5.1B

Employees—

Founded2018

HeadquartersSan Francisco, USA

StatusPrivate

Products

Selected offerings — the AI products recorded here, not the vendor's full catalogue.

• Abnormal AI Platform

  Behavioural AI platform, powered by Abnormal's own Attune model, that baselines normal behaviour for every employee and vendor to detect phishing, business email compromise and account takeover that signature-based filters miss.

Inside Abnormal AI

• Abnormal AI Phishing Coach Application Included with the parent

  Phishing simulation and training that generates its exercises from the real attacks aimed at that organisation rather than from static templates.

• Abnormal AI Security Mailbox Application Included with the parent

  Automates phishing triage: answers every employee report in seconds and remediates campaign-wide threats without an analyst in the loop.

• Abnormal AI Data Analyst Application Included with the parent

  Answers security teams' questions about threats, attack patterns and risk across email and SaaS on demand, without writing queries.

• Attune Platform Included with the parent

  Abnormal's behavioural AI foundation model: builds a baseline for every identity from billions of signals so the products above it can flag anomalies in real time.

• Account Takeover Protection AI agent Included with the parent

  Detects and autonomously remediates compromised Microsoft 365/Google Workspace accounts by learning normal sign-in, device and behavioral patterns.

• AI Governance Application Included with the parent

  Discovers shadow AI tool/agent/chat usage via email, OAuth, identity and browser signals and enforces policy automatically.

• Email DLP Rules Application Included with the parent

  Combines a custom outbound DLP policy engine with an AI triage agent that evaluates matches in context, releasing benign messages and quarantining likely violations.

• Email Productivity Application Included with the parent

  Behavioral AI that automatically moves low-priority promotional email (graymail) out of the inbox without manual rules.

• Identity Threat Protection Application Included with the parent

  Behavioral AI that catches hijacked sessions, abused OAuth grants and privilege misuse across email, IdP and SaaS.

• Inbound Email Security Application Included with the parent

  Behavioral-AI email threat detection that builds per-employee/vendor baselines to catch BEC, phishing and payload-free social engineering before delivery.

• Infiltration Prevention Application Included with the parent

  Analyzes identity signals pre-provisioning (HR systems, IdP, email) to detect synthetic personas and coordinated nation-state infiltration campaigns.

• Messaging Security Application Included with the parent

  Inspects Microsoft Teams and Slack for malicious URLs and weaponized attachments, auto-remediating high-risk messages.

• Misdirected Email Application Included with the parent

  Uses behavioral AI to detect outbound email sent to unintended recipients and quarantines it before delivery.

• Security Posture Management Application Included with the parent

  Checks a Microsoft 365 environment against CIS Benchmarks, detects configuration drift in real time and provides prioritized remediation.

Similar products 33

No sourced competitor yet: no filing, vendor document or measured-market report read so far names a rival for this company, so none is asserted. The companies below are the closest by what their products do.

How this list is ranked ↗

DDarktracePrivate · $5.3BAI Governance and Darktrace / Adaptive Human Defense do comparable work on threat detection and response; both also serve buyers who need to detect and respond to security threats; same layer and the same scale band (growth-stage private).1 of 3 capabilitiesShared product typeSame scale bandCompareRCRed CanaryPrivateAI Governance and Red Canary Managed Phishing Response do comparable work on threat detection and response; both also serve buyers who need to detect and respond to security threats; Red Canary's scale not recorded.1 of 3 capabilitiesShared product typeCompareVAVectra AIPrivate · $1.2BAI Governance and Identity Threat Detection and Response (ITDR) do comparable work on threat detection and response; both also serve buyers who need to detect and respond to security threats; same layer and the same scale band (growth-stage private).1 of 3 capabilitiesShared product typeSame scale bandCompareDDoppelPrivate · $615MAI Governance and Doppel Security Awareness Training do comparable work on threat detection and response; both also serve buyers who need to detect and respond to security threats; smaller scale (private).3 of 3 capabilitiesShared product typeSmaller scaleCompareSSentinelOnePublic · $7.5BAccount Takeover Protection and Purple AI do comparable work on threat detection and response; both also serve buyers who need to detect and respond to security threats; similar scale (public).2 of 3 capabilitiesShared product typeCompareHHiddenLayerPrivate · $50M raisedAttune and HiddenLayer AI Security Platform do comparable work on threat detection and response; both also serve buyers who need to detect and respond to security threats; similar scale (private).1 of 3 capabilitiesShared product typeCompareZZscalerPublic · $30.5BAI Governance and Zscaler Breach Predictor do comparable work on threat detection and response; both also serve buyers who need to detect and respond to security threats; larger scale (public).1 of 3 capabilitiesShared product typeLarger scaleComparePAPalo Alto NetworksPublic · $302.9BAttune and Precision AI do comparable work on threat detection and response; both also serve buyers who need to detect and respond to security threats; larger scale (public).3 of 3 capabilitiesShared product typeLarger scaleCompareCPCheck Point Software TechnologiesPublicAttune and ThreatCloud AI do comparable work on threat detection and response; both also serve buyers who need to detect and respond to security threats; Check Point Software Technologies's scale not recorded.1 of 3 capabilitiesShared product typeCompareCCrowdStrikePublic · $192.6BAttune and CrowdStrike Falcon platform do comparable work on threat detection and response; both also serve buyers who need to detect and respond to security threats; larger scale (public).2 of 3 capabilitiesShared product typeLarger scaleCompareTTorqPrivate · $1.2BAccount Takeover Protection and Torq Auto Triage do comparable work on threat detection and response; both also serve buyers who need to detect and respond to security threats; same layer and the same scale band (growth-stage private).2 of 3 capabilitiesShared product typeSame scale bandCompareFFortinetPublic · $124.8BAI Governance and FortiMail do comparable work on threat detection and response; both also serve buyers who need to detect and respond to security threats; larger scale (public).3 of 3 capabilitiesShared product typeLarger scaleCompareWWizAcquiredAttune and Wiz AI-SPM do comparable work on threat detection and response; both also serve buyers who need to detect and respond to security threats; Wiz is acquired, with no independent scale.1 of 3 capabilitiesShared product typeCompareMFMind FoundryPrivate · $44M raisedAbnormal AI Data Analyst and Nightingale do comparable work on threat detection and response; both also serve buyers who need to detect and respond to security threats; similar scale (private).2 of 3 capabilitiesShared product typeCompareVVercelPrivate · $9.3BAccount Takeover Protection and Vercel BotID do comparable work on threat detection and response; both also serve buyers who need to detect and respond to security threats; same layer and the same scale band (growth-stage private).1 of 3 capabilitiesShared product typeSame scale bandCompareAAccenturePublic · $111BAbnormal AI Security Mailbox and Cyber.AI do comparable work on threat detection and response; both also serve buyers who need to detect and respond to security threats; larger scale (public).3 of 3 capabilitiesShared product typeLarger scaleCompareIIBMPublic · $216.6BAI Governance and IBM Guardium AI Security do comparable work on threat detection and response; both also serve buyers who need to detect and respond to security threats; larger scale (public).3 of 3 capabilitiesShared product typeLarger scaleCompareNNiCEPublic · $6.5BAttune and Xceed AI FRAML do comparable work on threat detection and response; both also serve buyers who need to detect and respond to security threats; similar scale (public).3 of 3 capabilitiesShared product typeCompareEElasticPublic · $10.2BAI Governance and Elastic Security do comparable work on threat detection and response; both also serve buyers who need to detect and respond to security threats; similar scale (public).3 of 3 capabilitiesShared product typeCompareMMicrosoftPublic · $3.7TAI Governance and Microsoft Security Copilot do comparable work on threat detection and response; both also serve buyers who need to detect and respond to security threats; larger scale (public).3 of 3 capabilitiesShared product typeLarger scaleCompareRAResemble AIPrivateAbnormal AI Phishing Coach and Resemble Meetings do comparable work on threat detection and response; both also serve buyers who need to detect and respond to security threats; Resemble AI's scale not recorded.1 of 3 capabilitiesShared product typeCompareHHelsingPrivate · $18BAbnormal AI Phishing Coach and Cirra do comparable work on threat detection and response; larger scale (private).1 of 3 capabilitiesShared product typeLarger scaleCompareDDatadogPublic · $84.9BAccount Takeover Protection and Bits Security Analyst do comparable work on threat detection and response; both also serve buyers who need to detect and respond to security threats; larger scale (public).3 of 3 capabilitiesShared product typeLarger scaleCompareSSplunkAcquiredAI Governance and Splunk Enterprise Security do comparable work on threat detection and response; both also serve buyers who need to detect and respond to security threats; Splunk is acquired, with no independent scale.2 of 3 capabilitiesShared product typeCompareAAnthropicPrivate · $965BAI Governance and Claude Security do comparable work on threat detection and response; both also serve buyers who need to detect and respond to security threats; larger scale (private).3 of 3 capabilitiesShared product typeLarger scaleCompareCCiscoPublic · $433.3BAI Governance and Cisco AI Defense do comparable work on threat detection and response; both also serve buyers who need to detect and respond to security threats; larger scale (public).3 of 3 capabilitiesShared product typeLarger scaleCompareCCyeraPrivate · $12BAI Governance and Cyera DSPM both serve buyers who need to detect and respond to security threats; larger scale (private).1 of 3 capabilitiesShared product typeLarger scaleCompareKKrispPrivateAI Governance and Krisp Voice Security both serve buyers who need to detect and respond to security threats; Krisp's scale not recorded.1 of 3 capabilitiesShared product typeCompareNNeo4jPrivate · $2BAbnormal AI Data Analyst and GraphAware Hume do comparable work on threat detection and response; same layer and the same scale band (growth-stage private).2 of 3 capabilitiesShared product typeSame scale bandCompareDDocusignPublic · $12.7BAI Governance and Docusign Identify both serve buyers who need to detect and respond to security threats; larger scale (public).2 of 3 capabilitiesShared product typeLarger scaleComparePPresightPublic · $5.6BAbnormal AI Phishing Coach and Presight Financial Solutions both serve buyers who need to detect and respond to security threats; similar scale (public).2 of 3 capabilitiesShared product typeCompareOOpenAIPrivate · $852BAbnormal AI Phishing Coach and OpenAI Daybreak do comparable work on threat detection and response; both also serve buyers who need to detect and respond to security threats; larger scale (private).3 of 3 capabilitiesShared product typeLarger scaleCompareGGlean (Glean Technologies)Private · $7.2BAI Governance and Glean Protect both serve buyers who need to detect and respond to security threats; same layer and the same scale band (growth-stage private).1 of 3 capabilitiesShared product typeSame scale bandCompare

Closest alternatives are pairs a vendor page itself compares. Similar products are matched from what each product does; nothing in that group is asserted as a rivalry.

Sources

Total funding

Press release · 1 Aug 2024

Abnormal Security's own release: "AI-Native Human Behavior Security Leader Abnormal Security Announces $250 Million Series D Financing at a $5.1 Billion Valuation." Prior rounds (Series A-C) totalled approximately $286M per the company's own funding history; $250M Series D brings the cumulative total to approximately $536M. The Series D figure itself is the only one independently confirmed here.

Valuation

Press release · 1 Aug 2024

Same release: Series D priced at a $5.1 billion valuation.

Founded

Press release · 1 Aug 2024

Company founded in 2018 per its own materials; became a unicorn in 2022.

Description

Official documentation · 9 Sep 2026

Their own page: "Build a behavioral model of every person and every vendor connected to your organization," and describes catching "BEC, vendor fraud, account takeover, and AI-generated attacks legacy gateways miss." Both halves of the claim hold up as written.

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