# Dark Web Monitoring for Businesses: What It Covers, What It Cannot Do, and How to Set It Up

[Dark Web Monitoring for Businesses: What It Covers, What It Cannot Do, and How to Set It Up](https://leakradar.io/en/blog/dark-web-monitoring-for-businesses)

Published: 2026-10-22T07:00:00.000Z

Content language: en

A practical guide to dark web monitoring for companies: the sources that matter for leaked credentials, the honest limits of any monitoring service, a 15-minute setup with alerts, and the questions to ask before choosing a tool.

**Dark web monitoring** means continuously watching the places where stolen data is shared, and getting an alert when one of your assets shows up: an employee's email, your company domain, a brand name. Done well, it turns a leak you would have discovered months later into a ticket you can close the same day.

The term is also used loosely in security marketing. This guide explains what a dark web monitoring service actually watches, what no service can see, and how to set up useful monitoring for a business in about fifteen minutes.

## What "the dark web" means for leaked credentials

For credential leaks, the dark web is less a single hidden network than a set of places where stolen data circulates in the open, for anyone who knows where to look:

-   **Telegram channels** that share infostealer logs and credential lists;
-   **combolists**: large email:password or username:password lists assembled from older leaks and stealer logs;
-   **paste sites**, where dumps are posted as plain text;
-   **hacking and leak forums**, where threat actors discuss targets and list data for sale.

These are the sources LeakRadar's collectors watch. We only index data that has already been published in the open: we do not hack systems, buy stolen databases or take part in data trading.

## What good monitoring covers

Not all leaked data has the same value for a defender. A useful service should cover several types of data, because each one answers a different question.

Data types and what they tell you
| Data type | What it contains | What it tells you |
| --- | --- | --- |
| Stealer logs | URL, username and password captured by infostealer malware | Which account is exposed, and on which service |
| Combolists | Email:password or username:password pairs | Which credentials circulate in the lists used for credential stuffing |
| Raw leak files | The original files, beyond parsed credentials | Context beyond credentials, such as the original logs and documents |
| Forum posts | Threat-actor discussions and sale listings | Whether your company is being named or targeted |

Stealer logs deserve special attention, because they pair a plain-text password with the exact login page it was typed on. If you are not familiar with them, start with our explainer, [What are stealer logs?](https://leakradar.io/en/blog/what-are-stealer-logs)

## What dark web monitoring cannot do

Being clear about the limits is the best way to use monitoring well:

-   **See private channels and closed markets.** Data traded in invite-only groups or private deals only becomes visible to monitoring based on public sources, like ours, once it is shared more widely.
-   **Prevent the theft.** Monitoring detects exposure once data circulates, not before.
-   **Look backwards.** Alerts cover leaks ingested after you add an asset. What is already in the index has to be found with a search.
-   **Alert instantly.** Each monitored asset is re-checked on a cycle (about every six hours on LeakRadar), so alerts follow ingestion closely but not instantly.
-   **Explain the root cause.** An alert tells you a credential is exposed. Finding the infected device or the breached service is your investigation.

## How to set up dark web monitoring in 15 minutes

### 1\. Start with a baseline search

Because monitoring only looks forward, first measure what is already exposed. Run a domain search on your company domain and note the counts for employees, third parties and customers. Our [step-by-step domain search guide](https://leakradar.io/en/blog/check-company-leaked-credentials-domain-search) walks through reading and triaging the results.

### 2\. Choose what to monitor

Each plan has a limit on monitored assets, and each asset uses one slot. A practical starting set for a company:

-   your **main domain**, plus domains of subsidiaries and acquired brands;
-   the **email addresses of people with privileged access**: executives, IT administrators, finance;
-   on plans that include them, **raw file searches** for internal hostnames or project names, and **dark web searches** for your brand.

### 3\. Add an alert channel

Alerts can go to **Email**, **Slack**, **Discord**, **Telegram** or a **Webhook**. Send them where someone will act: the security team's channel, or a webhook that opens a ticket automatically. A free account can monitor its own signup email with email alerts; the other channels and asset types come with paid plans.

### 4\. Pick the categories for each domain

For a domain in the Stealer Logs dataset, choose what triggers an alert: **Employees** (website and email both on your domain), **Third parties** (work email used on external services), **Customers** (logins captured on your website), or all of them. A sensible default: Employees and Third parties for the security team, Customers for the product or fraud team.

### 5\. Decide on auto-unlock

Results are masked by default. With **auto-unlock** (paid plans), new matching credentials are revealed automatically and delivered in the alert: a `leaks.csv` attachment by email, the message itself on Slack, Discord and Telegram, the JSON payload for a webhook. You set a daily point limit per asset, and if points run out the alert still arrives, with masked records. Dark web forum alerts have no auto-unlock.

### 6\. Review alerts in one place

Every alert is kept in the **Monitoring Runs** table with the leaks behind it, so you can audit what was sent and when. Teams can also manage monitored assets through the API (`/notifications` endpoints, documented at [docs.leakradar.io](https://docs.leakradar.io/)).

## How to choose a dark web monitoring tool

Whichever service you evaluate, these questions separate useful monitoring from a reassuring dashboard:

1.  **Which sources does it watch?** Stealer logs, combolists, raw files and forums are different datasets. Ask which ones trigger alerts.
2.  **Do results include the URL?** A password without the service it belongs to is hard to act on.
3.  **Can it separate employees from customers?** They are handled by different teams.
4.  **Where do alerts go?** Chat tools and webhooks matter more than a weekly email digest.
5.  **Is pricing public?** Self-serve plans let you test on your own domain before talking to sales.
6.  **How is the data collected?** Prefer providers that only index data already exposed in public channels, and that explain it.
7.  **Where is the service hosted?** For European companies, EU hosting simplifies data protection reviews. LeakRadar is EU-hosted.

## Monitoring limits by plan

All paid plans include email and domain monitoring. Dark web forum search starts with Enterprise, and raw file search with Platinum. Current limits on monitored assets:

Monitored assets per plan
| Plan | Monitored assets |
| --- | --- |
| Starter | 20 |
| Enterprise | 100 |
| Platinum | 1,000 |
| Unlimited | 10,000 |

Prices and the full feature list are on the [pricing section](https://leakradar.io/en/#pricing-plans).

## Frequently asked questions

Is dark web monitoring worth it for a small company?

Infostealer infections are usually opportunistic, so a small company's employees are exposed like anyone else's. Monitoring a single domain watches for a frequent entry point, a valid password for a business service, at a low cost.

Will I be alerted about leaks that happened before I subscribed?

No. Monitoring reports leaks ingested after you add an asset. Run a search first to find existing exposure.

How fast are alerts?

Each monitored asset is re-checked about every six hours, so an alert follows shortly after a new leak is ingested.

Can I monitor a domain I do not own?

Only monitor assets you own or are explicitly authorized to assess. Some sensitive targets, such as banks, crypto services and government bodies, are restricted by default.

**Start with what is already out there.** [Create a free account](https://members.leakradar.io/) to search your domain, then add it to monitoring when you are ready.