Dark web monitoring watches criminal marketplaces, forums and breach dumps for your company's email addresses and passwords, then alerts you when they show up. Odds are some of your team's old credentials are already out there, so the useful question is whether you hear about it before an attacker tries them.
Data breaches happen constantly, and not just to your business. They hit every service your employees use: a fitness app, a shopping site, an old social media account. By the time a breach makes the news (if it ever does), the stolen logins may have been circulating for weeks or months. Dark web monitoring scans the places where that data ends up and tells you when your organization's credentials appear.
In credential monitoring, the dark web refers to the forums, marketplaces and paste sites where stolen data is traded, sold and posted. Some are Tor sites, some are invite-only channels, and some are public paste sites indexed by specialized crawlers.
When a large service is breached, the stolen database (sometimes hundreds of millions of email and password pairs) is sold and eventually spreads widely. Monitoring services collect data from these sources and continuously match it against the domains and email addresses they have been asked to watch.
The breach that hurts you is often someone else's. In credential stuffing, attackers take leaked username and password pairs from one breach and try them on other services. It works because people reuse passwords.
If an employee uses the same password for a personal account and for Microsoft 365, and that personal password leaks, an attacker can try it against your Microsoft 365 tenant. Without multi-factor authentication (MFA), they may get in, and you now have a compromised account from a breach that had nothing to do with your business.
Dark web monitoring gives you a head start. When a credential turns up, the password can be changed and the account checked, which closes that particular door before someone walks through it.
A well-run dark web monitoring program for a business typically includes:
Dark web monitoring is a detection tool. It tells you a credential has been exposed after the fact; it can't prevent the original breach, and it won't catch every leak. The right response to an alert is to change the password promptly and confirm the account hasn't already been accessed.
It also doesn't replace MFA. A leaked password on an account protected by MFA is much harder to exploit. The two work together: monitoring spots the exposure, and MFA limits what an attacker can do with it.
Some cyber insurance questionnaires ask about credential monitoring. In regulated industries, showing that you watch for exposed credentials can support the safeguards expected under HIPAA, the FTC Safeguards Rule under GLBA, and SEC Regulation S-P. No regulation requires dark web monitoring by name, but when an examiner or auditor asks how you would know if staff credentials were compromised, it is part of a good answer.
Dark web monitoring is available as an add-on to our cybersecurity services. When a monitored credential appears, we alert the affected user, coordinate the password change, review the account for signs of unauthorized access and document what we found. It pairs naturally with the MFA, email security and security awareness training that are standard in our cybersecurity plans, and with our guidance on business email compromise. Ask us for a scope that fits your business.
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Not a client yet? NerdSquad Managed IT Services is a Managed Service Provider (MSP) based in Naples, Florida. We support businesses onsite across Southwest Florida and remotely nationwide. Book a discovery call or call (239) 465-0079.
Related: Cybersecurity services in Naples