Perimeter stops the targeted attacks your Secure Email Gateway can't see — BEC, account takeover, payload-less impersonation. API-native deployment, post-delivery remediation, built for the Fortune 500.
Secure Email Gateways were designed for a world of spam, commodity malware and attachment payloads. Today's adversaries don't need any of that — they need a credible sender, a plausible context, and sixty seconds of your CFO's attention.
Perimeter integrates via the Microsoft 365 Graph and Google Workspace APIs — no MX record change, no mail-flow re-route, no gateway to drain into. Inline, post-delivery, and invisible to the sender.
Each module is a full product. Deploy one, deploy four — same tenant, same console, one dashboard for your SOC.
Language-model detection of Business Email Compromise, Vendor Email Compromise, and payload-less impersonation — the attacks that arrive with no attachment, no malicious link, and a perfectly plausible tone.
Continuous behavioural baselining on every mailbox. Anomalous OAuth grants, new-device sign-ins from improbable geographies, mail-forwarding rules silently created in the night — all surfaced, all containable.
Move from DMARC monitoring to DMARC enforcement without breaking outbound mail flow. Continuous discovery of authorised senders, BIMI & VMC onboarding, and takedown of lookalike domains — run from one console.
Perimeter doesn't stop at detection. When a verdict flips — a post-delivery sandbox detonation, a lookalike takedown, a supplier compromise signal — messages are retracted from the inbox, affected users coached, and your SOAR/SIEM notified automatically.
Perimeter's detection fabric learns across every customer, every tenant, every hour. When one bank sees a new BEC pattern at 09:14 UTC, the other 1,399 tenants on the platform are protected against it by 09:15.
Certified, audited, and deployed across US federal civilian agencies, EU banks, and UK NHS trusts.
Perimeter integrates with every SIEM, SOAR, IdP, and collaboration tool a modern SOC runs on — out of the box, with pre-built content and a first-class API.
Book a 30-minute live demo against your actual tenant (read-only, scoped OAuth, no mail-flow change). We'll show you the targeted attacks in your last 30 days of mail — and how quickly Perimeter would have caught them.