Darktrace / EMAIL vs Sophos Secure Message

Darktrace / EMAIL is a paid cloud security product that uses behavioral AI to identify and stop phishing, business email compromise, impersonation, and social-engineering threats. It learns an organization’s communication patterns and detects suspicious behavior without relying on known attack signatures. Responses can range from tagging messages to full quarantine. Coverage includes inbound, outbound, and lateral mail, plus account-based and messaging attacks. Data-loss prevention analyzes behavior and message content for sensitive information in outbound email, including unlabeled data. Darktrace also describes behavioral protection for Microsoft Teams chats. Deployment can use API-only or API plus journaling without disrupting mail flow. The product integrates with Microsoft 365 and Microsoft Exchange and is hosted on Microsoft Azure; listed integrations include Google Workspace, Azure Sentinel, Elastic Security, ReliaQuest, and Splunk. Pricing is on request, with a 30-day trial.

Sophos Secure Message is part of Sophos Email, a cloud service for protecting inboxes from phishing, business email compromise, spam, and email-delivered malware. Sophos Email uses AI and machine-learning models, natural-language processing, sender authentication, URL rewriting, and attachment sandboxing to detect threats. Post-delivery protection can retrieve messages later identified as malicious after they reach inboxes. Organizations can set Secure Message policies for selected users, groups, domains, and external recipients. Outbound policies support TLS, S/MIME, push encryption, and portal encryption. With portal encryption, recipients can read and reply to encrypted messages through a secure web portal without maintaining their own encryption infrastructure. Multi-rule data-protection and content-control policies can detect sensitive email data and encrypt it automatically. Sophos Email integrates with Microsoft 365 and Google Workspace and connects threat telemetry with Sophos MDR and XDR. Secure Message policies cannot be configured in Sophos Email Monitoring System mode. A free trial is available through an active Sophos Fusion account or the trial form. Pricing is on request, and there is no free plan.