Abnormal Security AI
AI email security platform that detects sophisticated phishing and business email compromise attacks.
- Always free
- No credit card
What is Abnormal Security AI?
Key features
Behaviour analysis
examines email patterns and user actions to identify anomalies that signal compromise or phishing attempts
Business email compromise detection
spots CEO fraud and account takeover attempts by analysing sender behaviour and request legitimacy
Phishing detection
identifies sophisticated phishing emails that bypass standard spam filters
Post-breach analysis
reviews past email activity to assess whether compromised accounts have been sending malicious messages
Integration with existing email systems
works alongside your current email infrastructure without replacing it
Pros & cons
Advantages
- Free tier available, making it accessible to smaller organisations with limited security budgets
- Focuses on behaviour-based detection rather than pattern matching, catching novel and targeted attacks
- Reduces false positives by understanding legitimate business communication patterns
- Helps detect internal compromise and lateral movement within email systems
Limitations
- Effectiveness depends on having sufficient historical email data to establish normal behaviour patterns
- May require integration support for certain email platforms or legacy systems
- Free tier likely has limitations on users, organisations, or advanced features compared to paid plans
Use cases
Protecting small to medium-sized businesses from phishing and BEC attacks without dedicated security staff
Detecting compromised employee accounts that are being used to send internal fraud requests
Adding an extra layer of email security alongside existing gateway filters
Identifying targeted attacks aimed at specific high-value employees or executives
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Pricing
Get started with Abnormal Security AI
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- Always free
- No credit card