Sendmarc Breach Detection Service
Sendmarc’s Breach Detection service constantly monitors the dark web and hundreds of breach sources to find stolen or leaked company data before it can be used against you.
What Is Breach Detection?
Sendmarc’s Breach Detection service constantly checks many sources, including the dark web, to find stolen or leaked company data before it can be used against you.
BeSecureOnline sets up this service for clients so they can easily see where credentials, personal data, or sensitive information have been exposed — whether through their own systems or third-party providers.
Sendmarc consolidates data from many sources into a single, simple dashboard, turning raw breach information into clear alerts and actions. Instead of checking multiple tools and websites, your security and IT teams get a single view of exposed accounts and risks — enabling them to quickly reset passwords, lock accounts, and strengthen controls.
Since Breach Detection works with Sendmarc’s DMARC platform, you also get stronger email security and domain protection in one place — a practical early warning system for compromised data and an easy way to lower the impact and cost of breaches.
of breaches involve stolen or weak credentials — making monitoring an essential layer of defence.
is the average time BeSecureOnline takes to alert you and begin remediation after a breach is detected.
people minimum to activate the service — scalable to any organisation size after that.
How Breach Detection Works
Instead of checking different tools and websites, your security and IT teams get a single view of exposed accounts and risks — with clear actions to take immediately.
Sendmarc constantly scans the dark web, paste sites, breach databases and hundreds of other sources for your domain's credentials and data.
As soon as compromised credentials or leaked data matching your domain are detected, your team is alerted so remediation can begin immediately.
All breach data from all sources consolidated into one clear view — no toggling between tools. See exactly which accounts are exposed and what action is needed.
Breach Detection works natively alongside Sendmarc's DMARC platform — combining email authentication and breach monitoring in one managed service.
BeSecureOnline works directly with your team — or with your password manager — to reset exposed credentials, lock accounts and tighten access controls fast.
Every breach response is documented to meet GDPR notification requirements and cyber insurance evidence standards — protecting you at audit and at claim time.
Client Success Story
A real example of how Sendmarc Breach Detection — managed by BeSecureOnline — caught a live breach and resolved it before any damage was done.
A major SaaS supplier suffered a data breach that exposed user accounts belonging to our client’s London and Northern Ireland teams. Sendmarc matched the leaked credentials to the client’s domain and flagged them in one clear dashboard view.
We rang the client CISO immediately, highlighted the breach, and recommended changing C-suite passwords across every application. Using Keeper Security, which we manage for the client, we changed over 4,000 passwords in 20 minutes — then tightened access controls and reset all affected credentials.
We completed the full process with proper checks for GDPR and cyber-insurance requirements. The CISO and IT Director were commended in the board’s quarterly review with special mention for a job well done.
“There are some things that are simply the right thing to do. Breach detection tracking is one of those things. The minimum is 10 people — after that it scales to whatever you need.”
Why BeSecureOnline
We don’t just set up Breach Detection and leave you with a dashboard. We manage the whole process — from initial setup to real-time response when a breach is detected.
We configure Breach Detection for your domain, set up notifications, and integrate it with your existing security stack and password management.
When a breach is detected, a named BeSecureOnline expert contacts you directly. No ticket queue. No call centre. Immediate, informed action.
We manage the full remediation process — credential resets, access tightening, GDPR documentation and cyber-insurance evidence — handled entirely by our team.
Get in Touch
The minimum for this service is 10 people — after that it scales to any size. Get in touch and we’ll give you a clear picture of what’s involved and what it costs.
We’ll review your domain and come back to you within 24 hours.
Or contact us directly: +353 1 554 7343 | info@besecureonline.co.uk
While you’re protecting against breaches, make sure your domain is also protected from email spoofing and impersonation. Run a free DMARC health check in seconds.