Abnormal AI - Cloud Email Security

by Abnormal Security CorporationMicrosoft 365Freemium

Protects Microsoft 365 email by detecting and remediating phishing, account compromise, ransomware, and other threats.

Facts verified marketplace.microsoft.comAd-free rankings
PRICINGFreemium
DEPLOYMENTCloud
CATEGORYSecurity
UPDATED ON MARKETPLACE
Abnormal AI - Cloud Email Security — screenshot from the Microsoft Marketplace listing

What it does

Abnormal AI connects to Microsoft 365 through an API and examines email context and user behavior. It identifies phishing, business email compromise, ransomware, malware, insider threats, graymail, account takeover indicators, and risky cloud configuration changes. Security teams can remove harmful messages, address phishing campaigns, disable compromised accounts, end sessions, reset passwords. The platform also processes reported phishing, gives employees generated feedback, and monitors vendor-related email risks.

Key capabilities

from the Microsoft Marketplace listing

Email threat detection

Identifies phishing, business email compromise, ransomware, malware, insider threats, and graymail.

Campaign remediation

Removes harmful email from inboxes and supports remediation across tenants.

Phishing triage

Processes user-reported phishing, creates individualized feedback, and finds related unreported messages.

Mailbox investigation

Searches messages by user, subject, attack type, or campaign and supports targeted or bulk actions.

Graymail filtering

Filters unwanted marketing messages according to each user’s preferences.

Account takeover protection

Can disable accounts after detecting signs such as unusual sign-ins, session hijacking, or unexpected internal email bursts.

Vendor fraud protection

Detects invoice fraud, vendor impersonation, and compromised suppliers.

Posture management

Finds configuration risks, ranks them by business risk, and supplies remediation steps.

Use cases

  • Security teams can examine dormant admin accounts and risky third-party applications.
  • Employees can receive generated feedback after submitting suspected phishing messages.

Who it's for

SOC teams and security teams.

How it compares

Abnormal AI is listed as freemium and cloud deployed. Vade for M365, GreatHorn Cloud Email Security, Check Point Email Security (formerly Harmony Email & Collaboration), and Cisco Secure Email Threat Defense are listed as paid and cloud deployed, while Red Sift OnDMARC - Block Email Impersonation is listed as freemium and cloud deployed. Abnormal AI has an update date of Jul 2026; the listed dates are Dec 2025 for Vade for M365, GreatHorn Cloud Email Security, and Cisco Secure Email Threat Defense, Apr 2026 for Check Point Email Security (formerly Harmony Email & Collaboration), and Aug 2026 for Red Sift OnDMARC - Block Email Impersonation.

NamePricingDeploymentUpdated
Abnormal AI - Cloud Email Securitythis pluginFreemiumCloud
Vade for M365PaidCloud
GreatHorn Cloud Email SecurityPaidCloud
Check Point Email Security (formerly Harmony Email & Collaboration)PaidCloud
Cisco Secure Email Threat DefensePaidCloud
Red Sift OnDMARC - Block Email ImpersonationFreemiumCloud

In the catalog

35 plugins in Microsoft 365 · Security

Price distribution: 4 freemium, 18 paid, 13 price not published

Pricing & deployment

Platform
Microsoft 365
Product
Microsoft 365
Deployment
Cloud
Pricing
Freemium

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What the vendor says

«Stop Advanced Email Attacks with Behavioral AI Trusted by over 25% of Fortune 500 organizations and rated 99% would-recommend on Gartner Peer Insights. Abnormal AI enhances Microsoft 365 with an AI-native platform that protects against the full spectrum of modern email threats—without rules, tuning, or policy …»

Official marketplace listing

Publisher
Abnormal Security Corporation
Updated on marketplace
Facts verified

Tags

emailsecuritybusinesscompromisebecphishingvendorinvoicefraudabnormal