Dark-web monitoring

The tool scans known data breaches and dark-web sources for your staff's email addresses and credentials, and alerts you when they appear.

What it is

Dark-web monitoring is a service, usually part of a password manager, that checks lists of stolen data for the email addresses and passwords your team uses. Criminals trade leaked logins in underground forums and breach dumps. If a work email and password from one of those dumps matches an account in your password manager, the tool raises an alert so the password can be changed. LastPass is one example of a tool that offers it.

Why it matters

Many people reuse passwords, so a breach at an unrelated website can open the door to company systems. Monitoring turns that hidden risk into a visible task. It helps most for companies with many staff, contractors and shared logins, where nobody can reasonably track every breach in the news.

It does not stop a breach and it cannot find every leak. It tells you after the data is already out there, so it works alongside strong unique passwords and two-step login, not instead of them.

What to check

  • Does it cover every user in the company, or only the admin or individual accounts?
  • Does an admin see the alerts, or only the affected employee?
  • Does it only report an exposed email address, or also whether the stored password was part of the leak?
  • Is it included in the plan you are considering, or sold as an extra?

Tools with Dark-web monitoring

  • LastPass logo
    Tool
    Stores passwords, passkeys, and encrypted credentials in a shared vault your team can access securely.

    Tech stack

    Free planAffiliate link

In Tech stack ranking order; the number is each tool's place. Some of this is collected from public sources and not yet checked by us.