概要
Abnormal Security has emerged as the leader in AI-powered email security, protecting organizations from sophisticated phishing, business email compromise (BEC), and account takeover attacks that bypass traditional email gateways.
Using behavioral AI, Abnormal builds a baseline of normal communication patterns for every user and detects anomalies that indicate attacks—even when emails contain no malicious links or attachments.
The API-based architecture integrates seamlessly with Microsoft 365 and Google Workspace without requiring MX record changes or inline deployment.
主な機能
Behavioral AI
Learns communication patterns to detect anomalous emails indicating attacks.
🎣 BEC Protection
Industry-leading detection of business email compromise and impersonation.
Account Takeover
Detects compromised accounts based on behavioral indicators.
VEC Protection
Stops vendor email compromise and supply chain attacks.
API-Based
Easy deployment via API—no MX record changes required.
Auto Remediation
Automatically removes malicious emails from all inboxes.
長所と短所
利点
- Best-in-class BEC detection
- Easy API-based deployment
- Low false positive rate
- Excellent account takeover detection
- Great M365/Google integration
欠点
- Premium pricing
- Limited to email security
- Requires API access
- Learning period required
価格
Abnormal Security uses enterprise-focused pricing based on number of mailboxes and deployment scale:
Enterprise Model
Custom pricing per mailbox, typically starts at 1,000+ users
Mailbox-Based
Pricing scales with number of protected email accounts
Full Platform
All features included - no module-based upsells
Implementation
Professional services available for deployment assistance
Annual Contracts
Typically annual commitments with volume discounts
ROI Focus
Pricing justifies with prevented breach costs
最適な使用例
Abnormal Security Excels For:
- Enterprise Organizations: Large companies with 1,000+ mailboxes needing advanced email security
- Financial Services: Banks and financial institutions facing targeted BEC attacks
- Healthcare: Medical organizations protecting patient data from phishing
- Professional Services: Law firms, consulting firms with high-value wire transfers
- Manufacturing: Companies vulnerable to vendor email compromise in supply chain
- M365/Google Workspace: Organizations using Microsoft or Google cloud email
May Not Be Ideal For:
- Small businesses under 100 users (pricing not economical)
- Organizations needing traditional SEG features
- Companies with on-premise email infrastructure
- Budget-constrained security teams
比較
Abnormal Security vs Competitors
vs Proofpoint/Mimecast
- Superior BEC detection
- Easier deployment (API vs MX)
- Better user experience
- Lower false positives
vs Microsoft Defender
- Advanced behavioral AI
- Better account takeover detection
- Catches attacks Defender misses
- Complementary deployment
スクリーンショットとインターフェイス
Explore Abnormal Security's interface:
よくある質問
How does Abnormal Security deploy?
Abnormal uses API-based deployment connecting directly to Microsoft 365 or Google Workspace. No MX record changes or mail flow modifications required. Deployment typically takes less than 30 minutes with minimal IT involvement.
What is behavioral AI email security?
Instead of signature-based detection, Abnormal learns normal communication patterns for each user—who they email, writing style, timing, etc. It then detects anomalies indicating attacks, even when emails contain no malicious links or attachments.
Does Abnormal replace my existing email gateway?
Abnormal typically works alongside existing SEGs (like Proofpoint or Mimecast) to catch sophisticated attacks they miss. Some organizations eventually replace their SEG, but most deploy Abnormal as an additional layer focused on advanced threats.
How long is the learning period?
Abnormal begins protecting immediately but improves detection accuracy during the first 30 days as it learns organizational communication patterns. Most value is realized within the first week of deployment.
What is the false positive rate?
Abnormal has one of the lowest false positive rates in the industry, typically under 0.1%. The behavioral AI approach means it understands context and catches real attacks while minimizing legitimate email blocking.
最終評価
Abnormal Security sets the standard for AI email security. Its behavioral approach catches sophisticated attacks that bypass traditional gateways. Essential for organizations facing advanced email threats.