Barracuda Sentinel

Barracuda Sentinel uses artificial intelligence to protect organizations from phishing, business email compromise (BEC), and account takeover attacks that bypass traditional email security gateways. Unlike conventional email filters that rely on known threat signatures and blacklists, Sentinel learns the unique communication patterns within your organization and flags anomalies that indicate social engineering attempts.

The AI engine analyzes email metadata, sender behavior, and communication patterns to build a baseline of normal activity for each user. When an email deviates from established patterns — impersonating an executive, requesting unusual wire transfers, or originating from a newly spoofed domain — Sentinel flags it before it reaches the recipient. This behavioral approach catches zero-day phishing attacks that signature-based filters miss entirely.

Business Email Compromise detection is Sentinel's strongest capability. BEC attacks, where attackers impersonate executives or trusted vendors to trick employees into transferring funds or sharing sensitive data, cost businesses an estimated 2.7 billion USD annually according to the FBI. Barracuda Sentinel specifically targets these sophisticated attacks that look like legitimate business communications.

The platform integrates directly with Microsoft 365 via API, meaning it works alongside your existing email security gateway rather than replacing it. This layered approach adds AI-powered protection without disrupting existing email flows or requiring MX record changes. Setup takes minutes rather than the hours or days required by inline email security appliances.

Domain fraud protection monitors for domain spoofing and brand impersonation across the internet, alerting you when attackers register lookalike domains or use your brand in phishing campaigns targeting your customers and partners.

Pricing starts at approximately 3 USD per user per month, making it an affordable addition to existing email security infrastructure. For organizations that already have a basic spam filter but need advanced protection against targeted attacks, Sentinel provides the AI-powered layer that legacy systems lack.