The message that costs the most looks completely ordinary.
Business email compromise does not carry a payload. It carries a plausible request from a familiar name at a moment that makes sense. Protect 365 baselines how your organisation actually corresponds, who emails whom, about what, with what authority, and flags the messages that break that pattern.
Relationships, not just reputation.
Domain reputation catches the crude attempts. Everything expensive gets through it.
Correspondence graph
Who normally emails whom, from where, at what cadence, with what tone of request.
Authority patterns
A payment instruction from someone who has never issued one is a question, not a task.
Look-alike detection
Display-name and domain near-misses caught at the character level.
Timing anomalies
Urgency at unusual hours from unusual places, weighted accordingly.
A warning that explains itself.
Banners nobody understands get clicked through. Ours say what is unusual about this specific message.
- Specific banners"This sender has never asked you for payment details before" beats "external sender".
- One-click reportingReports feed straight into the baseline, so the model learns from your staff.
- No quarantine black holeHeld messages are reviewable by the recipient, with the reason attached.
Journalling first, enforcement second.
You see exactly what would have been blocked before anything is blocked.
Connect
API connection to your mail tenant. No MX record change, no mailflow risk.
Observe
Two weeks of correspondence build the relationship graph.
Shadow mode
Verdicts are recorded but not enforced, so you can audit them against reality.
Enforce
Banners and holds go live at whatever threshold you are comfortable with.
Alongside what you already run.
This sits beside your existing mail hygiene rather than replacing it.
| Threat | Native mail filtering | Protect 365 |
|---|---|---|
| Bulk spam | ✓ | ,, not its job |
| Malware attachments | ✓ | ✓ |
| Credential phishing | Partially | ✓ |
| Display-name impersonation | Partially | ✓ |
| Payment fraud with no payload | , | ✓ |
| Internal account takeover | , | ✓ |
What teams ask before they switch.
Straight answers, including the ones that make a sale harder.
Does mail route through you?
Which platforms are supported?
Can it see message content?
What about internal-only compromise?
See what it would have caught last month.
Connect a read-only view of one mail tenant and we will show you the verdicts against real history.