Solution / Data breach detection

Data breach detection across every kind of leak

Enter a domain. We search our collection of leaked records, full stealer logs and ransomware leak archives, wherever they were dumped, and show you the original record, why it matched and what to do next. What is being said, offered or prepared against you is a separate topic: dark web & forum monitoring.

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See how a search works

10 leaks mention northwind-example.com: 1,910 matching records in 4 source types.

  • Telegram dump: Login file shared in a channel. 5 matching, risk high (88 of 100). Original record: channel private, invite only, login k.lund@northwind-example.com, pass [redacted], file TXT, 5 lines, 2 new to us. Why it matched: 5 lines with @northwind-example.com logins in a file shared for free, 2 of them new to us.
  • Stealer log: Infected laptop with a VPN login. 4 matching, risk critical (96 of 100). Original record: computer DESKTOP-NW-4F2K, ip 198.51.100.23, url vpn.northwind-example.com, login j.doe@northwind-example.com, pass [redacted]. Why it matched: A saved login for your VPN host, plus SSO session cookies less than a week old.
  • Combo list: EU webmail combo list. 9 matching, risk low (34 of 100). Original record: login p.novak@northwind-example.com, pass [redacted], seen in 3 older leaks, valid est. 10–30% of the list. Why it matched: 9 company addresses. Most pairs are recycled from older leaks, one is new.
  • SQL dump: Logistics SaaS database dump. 212 matching, risk medium (62 of 100). Original record: table users, email a.berg@northwind-example.com, hash [redacted], ref shipment references. Why it matched: 212 rows with company email addresses, from a supplier platform.
  • Ransomware leak site: Leak of a logistics supplier, 41 GB. 214 matching, risk high (79 of 100). Original record: archive 41 GB · 5,389 files, folder /clients/Northwind/contracts, file staff-list-northwind.xlsx, mentions 214 files. Why it matched: Folders and files named after Northwind in the leaked file tree.
  • Configuration file: Mail relay configuration. 2 matching, risk high (84 of 100). Original record: host mail.northwind-example.com, port 587, user relay@northwind-example.com, pass [redacted]. Why it matched: Your mail host and an SMTP login in a leaked configuration file.
  • URL:login:password list: Mixed list, 2.6 GB. 17 matching, risk high (81 of 100). Original record: url sso.northwind-example.com/login, login m.keller@northwind-example.com, pass [redacted], novelty password new to us. Why it matched: 17 lines with @northwind-example.com logins, 4 of them with passwords we had not seen.
  • Open cloud storage: Public storage bucket with an HR export. 38 matching, risk high (86 of 100). Original record: storage public, no login needed, file hr-export.csv, email k.lund@northwind-example.com, fields name, role, salary band. Why it matched: 38 rows with @northwind-example.com addresses in a file anyone can download.
  • Open database: Open index with CRM leads. 1,406 matching, risk medium (55 of 100). Original record: index crm-leads, ip 203.0.113.40, email m.keller@northwind-example.com, fields name, role, phone. Why it matched: 1,406 lead records that name Northwind, stored in a vendor’s CRM.
  • Documents: Supplier file share (PDF). 3 matching, risk high (74 of 100). Original record: file purchase-order-northwind.pdf, contact p.novak@northwind-example.com, iban [redacted], found in 3 of 3,912 files. Why it matched: 3 purchase orders mention northwind-example.com, with bank details.
430.7Bleaked records+646.8M today
296.0Bleaked accounts+467.1M today
134,693leak lists+287 today
37.40 TBof leaked data+71.87 GB today

Our breach collection of leaked records, updated with our average daily intake. Forum threads, channel posts and listings are not counted here.

In the dashboard

One search, step by step.

Check your own domain
Dashboard tour

Step 1 of 8: Pick what you know. Domain, email, name and 6 more

Fictional company and data. Passwords are shown as [redacted].

Data quality

Where our data comes from, and why it holds up.

We collect every leak ourselves, then clean, de-duplicate and describe it before it reaches your search.

  1. 01Collected by people and machines

    Analysts pick up leaks every day, wherever they are dumped; collectors and scrapers run around the clock.

  2. 02Every leak described

    A written description, tags and three dates for every leak. Unverified seller claims are flagged as such.

  3. 03Cleaned, not just collected

    Searchable fields, de-duplicated credentials, and an estimate of how much of a combo list is invalid.

  4. 04Fresh

    Hundreds of new leak lists on a normal day. The newest upload is usually only minutes old.

Data LibraryEvery leak in our collection, the same catalogue for every customer
Leak lists134,693+287 today
Records430.7B+646.8M today
Accounts296.0B+467.1M today
Data volume37.40 TB+71.87 GB today
Newest leak lists · newest upload minutes ago
Mixed URL:login:password list2.6 GB41.2M records7 min ago
Logistics SaaS database dump640 MB2.3M records26 min ago
EU webmail combo list123 MB2.6M records41 min ago
Size
2.6 GB
Records
41.2M
Accounts
38.9M
Files
1
urlemailpasswordbusinessprivate

URL:login:password lines posted for free in a cybercrime Telegram channel. About a third is new to our collection. The poster’s claims are not independently verified.

Why it’s different

More leaks. Deeper detail. Searched your way.

More leaks

Every kind of leak, collected every day

Breaches, combo lists, full stealer logs, SQL dumps, open databases, documents and ransomware leak files, wherever they were dumped.

16sources in one search
Deeper

The record, not just a breach name

See the leaked line itself, why it matched, how new it is, where else the password was used, and the infected computer behind it.

1 clickfrom a leaked password to every account that uses it
More flexible

Search anything, your way

Domain, email, name, IP, card BIN, brand, password, file name or free text. With a query language, an API call behind every search and alerts from any query.

9identifier types, plus free text
How you use it

From one domain to daily alerts.

  1. Minute 0Add your assetsDomains, mailboxes, IP ranges, brands, card BINs and keywords.
  2. Minutes laterSee what is already out thereOne baseline across 15 sources, with the exact query and how fresh each hit is.
  3. Every dayAlerts for what is newMonitors per source, by email or webhook. Exclude what you have handled.
  4. Every monthA report for managementCredential reports with trends, passwords masked if you like.
Alert to training

From breach alert to training, in one flow.

When an employee shows up in a breach, CyberFrog, our sister company, trains them on what actually leaked, and you see when they are done.

Free for every DarknetSearch client

  • Your alert rules decideYou pick which DarknetSearch alert rules trigger training. Checked daily by default, or as often as every hour.
  • Only your own peopleMatched by work email to your directory. New addresses only on your own domain, and only if you allow it.
  • What actually leakedThe leak, its source, when it was first seen and the exact line. Passwords only as far as your privacy settings allow.
  • Completion you can seeWho was notified, started and finished, in one ongoing campaign. No repeat lesson for the same kind of leak within 30 days by default.
  1. 1DarknetSearch alert
    j.doe@northwind-example.comin a breach record, from your alert rule
  2. 2Employee matched
    Jamie Doe, Financeby work email, in your directory
  3. 3Personal lesson
    portal.northwind-example.comj.doe@… | [redacted]their record, about 8 min + quiz
  4. 4Visible to your admin
    Jamie Doe · completedquiz passed, in your results
Full stealer logs

Not just a leaked line. The whole infected computer.

A combo line tells you that a password leaked. A stealer log shows the computer behind it, so you know how bad it is and what to reset.

A combo linej.doe@northwind-example.com:[redacted]An email and a password. Nothing about where, when or what else.
  • Session cookiesFresh cookies open a session without password or MFA: revoke, don’t just reset.
  • Everything on one device91 passwords on one laptop: company, suppliers, private.
  • Export for forensicsOne computer as JSON, or all of them with one row each.
A stealer log · 3 weeks agoMatched on vpn.northwind-example.com
Why this came up
Website
https://vpn.northwind-example.com/login
Login
j.doe@northwind-example.com
Password
[redacted]
System
Computer
DESKTOP-NW-4F2K
User
jdoe
IP
198.51.100.23
Country
Switzerland
Infection
Infected
3 weeks ago
Extracted
2 days later
Path
Downloads\invoice.exe
Malware
Family
Infostealer
Confidence
High
Signals
Vault dump, cookies
  • vpn.northwind-example.com/login
  • sso.northwind-example.com
  • crm.saas-vendor.example
  • mail.example
File tree
  • Passwords.txt
  • Cookies/
  • Autofill/
  • GoogleAccounts/
  • System info.txt
  • Screenshot.jpg

Fictional example. Passwords, cookies and tokens are never shown on this page.

Dark web & forum monitoring

What is said, offered or prepared is a separate view.

This page is about leaked records you can search and monitor. Forum threads, Telegram and Discord channels, paste sites, data broker shops and ransomware announcements are where attacks are planned and sold, often before anything leaks. They have their own page.

  • Access sales, insider requests and data offers on forums
  • Paste sites, Telegram, Discord and data broker shops
  • Ransomware victim announcements as an early warning
See dark web & forum monitoring
Credit card leaks

Payment cards in leaks, and on the market.

Card data shows up in breaches, dumps and Telegram channels, and is listed for sale on dark web marketplaces. Card search and BIN monitors live in financial fraud monitoring.

  • Free cards from dumps, breaches and Telegram channels
  • Cards on sale from dark web marketplace listings
  • Search by BIN range, last four or holder name, and monitor a BIN range
See financial fraud monitoring
Behind the data

People and machines, every day.

  1. 1CollectAnalysts and collectors, every day
  2. 2ProcessNormalised, de-duplicated, described
  3. 3MatchYour assets, any identifier
  4. 4ExplainWhy it matched, how new, how risky
  5. 5AlertEmail or webhook, per source
  6. 6ReportExports, API, white-label reports
Details

Search, monitoring, reports, privacy and limits.

Start with one domain

See what is out there about your company.

Check your domain for free: we count the leaked records that name it. Then start a free trial to see every record, set up monitors and run reports.