Cloud-delivered AI solution for real-time spear phishing, business email compromise, and cyber fraud defense

Block threats already in your inbox.

Traditional email filters only filter incoming emails. Sentinel integrates directly into Office 365 to find threats inside your mail system that security gateways can’t see.

Stay a step ahead of attackers with AI-based threat detection.

Sentinel learns your business’s unique communication patterns to detect personalised fraud in real-time to protect against business email compromise and account takeover.

Stop wasting time managing static security rules.

Sentinel is truly a zero-administration tool. It works silently in the background to block fraudulent emails from reaching users with no impact on performance.

Sentinel detects threats that email gateways can't

Sentinel detects threats that traditional email security systems can't. It integrates directly with Microsoft Office 365 APIs to detect attacks coming from both internal and external sources. It uses artificial intelligence to detect signs of malicious intent and deception within every email with virtually no IT administration required.

Discover threats hiding in your inbox right now with the free Barracuda Email Threat Scanner.

98% of organisations with Office 365 harbor malicious emails inside their mailboxes.* Discover email threats before your users do.

12,000 organisations have used the scanner to discover 10 million threats hiding in their mailboxes. Get your free scan now. It’s fast, safe, and has no impact on your email performances. Barracuda Forensics and Incident Response can be used to remediate within minutes.

*Organisations with 100+ mailboxes

Protect your business against account takeover

Corporate Account Takeover presents a significant new threat to business. Hackers gain access to corporate email accounts through stolen credentials and use them to launch subsequent targeted attacks, internally and against external targets. Account takeover or attacks that originate from these accounts are almost impossible to detect since they don’t leverage impersonation techniques—they come from a legitimate account and appear to be from a trusted source. In fact, traditional email security solutions don’t even observe internal traffic and have no way of stopping an attack originating internally.

Barracuda Sentinel detects both account takeover attempts and attacks launched from compromised accounts. By analysing both historical and inbound data Sentinel is able to identify behavioral, content, and link-forwarding anomalies within your organisation, and to flag and quarantine fraudulent emails. It is also able to prevent attempts to compromise employee credentials by automatically blocking targeted phishing emails that try to harvest employee passwords.


Prevent loss of credentials by blocking targeted phishing attacks missed by email gateways


Detect and alert IT when an account is compromised


Remove all malicious email sent by compromised account

Protect your reputation and stop domain fraud with DMARC reporting

Domain spoofing and brand hijacking are common techniques used by hackers in social engineering attacks. They can be used not only to target your employees, but also your customers, external partners, and other third parties that trust your brand. These impersonation attacks can lead to financial losses, as well as damage to your brand reputation.

DMARC (Domain-based Message Authentication Reporting and Conformance) authentication and enforcement can stop domain spoofing attacks. Many organisations today struggle to set up and enforce DMARC on their own, leaving their organisation and partners vulnerable to impersonation attacks. With an average organisation having dozens of email senders that send email on their behalf, companies need to have granular visibility into all traffic that is using their brand to effectively implement DMARC standards.

Barracuda Sentinel provides complete protection from email domain fraud through DMARC reporting, analysis, and visibility. This helps organisations to set up DMARC enforcement properly and reduce the potential of false-positive enforcements such as blocking legitimate email or misidentifying legitimate sender.

Automate incident response and get access to threat insights

No email defense can protect against every email threat one hundred percent of the time. And when malicious email ends up in a user’s inbox, you need to address the problem quickly. Slow, inefficient manual incident response processes too often allow the attack to spread further.

Barracuda Forensics and Incident Response automates incident response and provides remediation options to address issues faster and more efficiently. Admins can send alerts to impacted users and remove malicious email directly from their inboxes with a couple of clicks. Discovery and threat insights provided by the Forensics and Incident Response platform help to identify anomalies in delivered email, providing more proactive ways to detect email threats.

Get in touch


Our experienced team are here to help understand the way in which you do business and the way your organisation uses technology to deliver results.