Every year, billions of usernames and passwords are exposed in data breaches. Many of them belong to business email accounts that employees used to sign up for outside services, from software trials to industry newsletters. When those third-party sites are breached, the credentials often end up for sale on dark web marketplaces. Attackers then try them against your company’s email, VPN, and cloud apps.
Dark web monitoring gives you early warning when your company’s credentials appear in those breach dumps so you can act before an attacker does.
What Dark Web Monitoring Does
Dark web monitoring services scan breach databases, criminal forums, paste sites, and marketplaces for information tied to your business, most commonly email addresses on your company domain. When a match is found, you receive an alert showing which account was exposed, where it was found, and often what type of data was included, such as a password or personal details.
Step 1: Identify What To Monitor
Start with your company email domains. If you have multiple brands, acquired companies, or older domains, include those too. Some services can also monitor executive personal emails, IP addresses, and specific keywords tied to your business.
Step 2: Choose A Monitoring Approach
There are a few ways to get started:
- Free breach lookup tools can show whether specific addresses have appeared in known breaches. They are useful for a one-time check but do not provide continuous business monitoring.
- Security platform add-ons from some identity or email security vendors include basic credential exposure alerts.
- Managed dark web monitoring provides continuous domain-wide scanning, alert review, and guidance on what to do next. This is the best fit for most businesses.
Step 3: Verify Domain Ownership
Reputable services require you to prove you own the domain before showing results. This protects your data from being looked up by anyone else.
Step 4: Run An Initial Baseline Scan
The first scan often finds older exposures from years of breaches. Do not panic. Review the results, identify accounts that are still active, and prioritize recent exposures and those that include passwords.
Step 5: Build A Response Process
Alerts are only useful if someone acts on them. When an exposed credential is found:
- Reset the user’s password immediately, along with any account that shares it.
- Confirm multi-factor authentication is enabled on the account.
- Review recent sign-in activity for suspicious logins.
- Check for new mailbox rules or forwarding settings.
- Let the user know what happened and remind them not to reuse work passwords.
Step 6: Reduce Future Exposure
Monitoring tells you when something leaks. These steps reduce how often it happens:
- Require MFA on every business account
- Use a business password manager so employees create unique passwords
- Discourage using work email for personal sign-ups
- Train employees to recognize phishing that targets reused passwords
Why It Matters For Businesses
Stolen credentials are one of the most common ways attackers get into business email, which leads to invoice fraud, data theft, and ransomware. Cyber insurance carriers also increasingly ask about credential protection. Dark web monitoring is an inexpensive way to close that gap.
CTS Companies provides dark web monitoring in Michigan as part of a complete security program, with alerts reviewed by our team and clear next steps for yours. Talk to an expert to run a scan of your business domain.