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Business Email Compromise (BEC) detection for M365 + Google Workspace

Find hidden email rules before they become breaches

MailBreach scans every mailbox for stealth forwarding rules, suspicious inbox filters, and email exfiltration — then auto-fixes what it finds.

Start Your Free TrialSee How It Works

14-day free trial · First scan in under 15 minutes

Connect & scan

Link M365 or Google in two clicks

Detect threats

12 breach patterns checked per mailbox

Auto-remediate

Fix dangerous rules with one approval

Security Overview

Last scan: 2 minutes ago

Protected
Users Scanned
247
Open Findings
3
Remediated
24
Risk Reduction
87%
Findings over timeLast 7 days

Trusted outcomes for every mailbox

Comprehensive protection against email exfiltration across your entire organization.

Scan all users automatically

Enumerate every mailbox across M365 and Google Workspace. No agents to install.

Block risky external forwarding

Detect and disable unauthorized forwarding rules before data leaves.

Detect suspicious rules & filters

Find stealth inbox rules that delete, hide, or redirect sensitive emails.

Drift control

Daily re-scans catch policy drift. Re-fix automatically or with one click.

Evidence for audits

Weekly reports with full audit trail. Perfect for compliance and cyber insurance.

Get protected in three steps

From onboarding to continuous protection in under 15 minutes.

1

Connect your tenant

OAuth consent for Microsoft 365 or service account for Google Workspace. Takes under 5 minutes.

2

Continuous scanning

We scan all users for risky forwarding, inbox rules, and filters. AI classifies severity and confidence.

3

Remediate with confidence

Approve fixes one-by-one, or enable auto-remediation with guardrails, rollback, and verification.

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No Email Content Stored
Full Audit Logging
Tenant-Isolated
Snapshot Rollback

Least Privilege

By Design

Security is non-negotiable

We built guardrails into every layer. Your data stays yours, every action is logged, and you're always in control.

No email content stored or processed
Configuration metadata only
Allowlists + approval workflows
Before-snapshots captured for every change
Complete audit logging
Strict tenant isolation

Simple, transparent pricing

Start free for 14 days. Cancel anytime. Scale as you grow.

Starter

$99/month

For small teams getting started

  • Up to 50 users
  • M365 or Google Workspace
  • Approve-to-apply remediation
  • Weekly evidence reports
  • Email support
Most Popular

Pro

$249/month

For growing organizations

  • Up to 250 users
  • Both M365 and Google
  • Auto-remediation (severity 1)
  • Daily drift control
  • 3 webhook endpoints
  • Slack alerts
  • Priority email support

Plus

$499/month

For security-conscious teams

  • Up to 1,000 users
  • Both providers
  • Full auto-remediation
  • Unlimited webhooks
  • Slack alerts
  • Priority email support

Need more? Contact us for custom enterprise plans.

Frequently asked questions

Everything you need to know about the platform.

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Still have questions? Get in touch