Dark Web Scan
Check if your company domain or employee email addresses have been exposed in data breaches and infostealer logs. Our dark web scan for business searches billions of leaked credentials in seconds.
No Data Breach Detected
But You’re Not Exactly in the Clear
Prevent Future Data Breaches With Breachsense
- Continuously monitor the dark web and hacker forums for mentions of your company and your staff’s personal information.
- Detect data breaches in real time and prevent cyberattacks before they happen.
- Uncover mentions of your VIPs or executive staff on ransomware leak sites and hacker forums, and mitigate threats early.
Data Breach Detected
It’s Time to Act
Book a demo with Breachsense to uncover the compromised credentials or leaked company data and mitigate potential cyberattacks.
Secure Your Breached Accounts
- Reset Account Credentials for all compromised accounts.
- Turn On 2-Factor Authentication to prevent attackers from using leaked passwords.
- Use Unique & Strong Passwords. Make this a company-wide practice.
- Train Your Staff. Show employees how to spot the attacks that cause breaches.
- Always Use a Password Manager. Make this a company standard.
- Continuously Monitor for Data Breaches. Even if you do everything right, there’s still a risk of human error. Breachsense lets you uncover data breaches in real time.
Detect Leaked Credentials
Scan criminal marketplaces and stealer logs for your organization’s exposed passwords. Discover compromised credentials before attackers use them to breach your network.
Enterprise Dark Web Scanning Service
Our dark web scanning service covers criminal marketplaces and infostealer channels, plus ransomware leak sites and third-party breaches. Detect threats from sources other monitoring platforms miss.
Results with Actionable Intelligence
Get immediate results showing exactly which employee credentials are exposed and where they were found. Know what to fix and prioritize based on threat severity.
What is the dark web?
The dark web is a hidden part of the internet that can’t be accessed through standard search engines or browsers.
It requires specialized software like Tor to access, allowing users to browse anonymously.
It’s primarily known for illegal activities including the sale of stolen data and hacking services.
Because of its anonymous nature, the dark web attracts cybercrime. That’s why security teams monitor it for threats.
It requires specialized software like Tor to access, allowing users to browse anonymously.
It’s primarily known for illegal activities including the sale of stolen data and hacking services.
Because of its anonymous nature, the dark web attracts cybercrime. That’s why security teams monitor it for threats.
Why get a dark web scan for business?
A dark web security scan checks if your organization’s login credentials or sensitive data has been exposed or sold in hacker forums and marketplaces.
Early detection lets you reset compromised passwords and secure those accounts before attackers use them.
Running regular dark web scans helps security teams catch exposed enterprise credentials and reset them early.
Early detection lets you reset compromised passwords and secure those accounts before attackers use them.
Running regular dark web scans helps security teams catch exposed enterprise credentials and reset them early.
What causes data breaches?
- Stolen or leaked credentials
- Misconfigured security settings and exposed databases
- Third-party vendors with access to your data who experience a breach
- Unpatched software vulnerabilities in applications and systems
- Social engineering and phishing attacks
- Insider threats from disgruntled or careless employees
- Malware infections including infostealers and ransomware
- Lost or stolen devices containing sensitive data
- Publicly exposed code repositories with embedded credentials
- Improper disposal of devices and storage media containing confidential information
A scan is a point-in-time snapshot. It tells you what’s already out there, not what surfaces tomorrow. After you run one, the next steps matter more than the scan itself. Reset every password that came back as exposed and force MFA on those accounts. Rotate any session tokens that showed up in the results.
From there, set up continuous dark web monitoring so you’re not running the same check every week by hand. A one-time scan misses the stealer log that drops two days from now and the combo list posted next Tuesday. It also misses whatever leaks when a vendor gets hit by ransomware next month. Ongoing monitoring catches those as they appear.
$curl -H "lic: $BS_LIC" \
"https://api.breachsense.com/stealer?s=example.com"
HTTP/1.1 206 Partial Content · 4.2s · application/json
{ "results": [ { "usr": "k.becker@example.com", "pwd": "V••••••12", "mal": "Lumma", "src": "confluence.example.com", "fnd": "20260609" }, { "usr": "t.nilsson@example.com", "pwd": "U••••••91", "mal": "RisePro", "ccn": "5188••••••••2470", "fnd": "20260605" }, { "usr": "legal@example.com", "pwd": "C••••••53", "mal": "Atomic", "src": "salesforce.example.com", "fnd": "20260601" }, { "usr": "m.ahmadi@example.com", "pwd": "G••••••48", "mal": "RedLine", "cwa": "0xBe3a17…cD8f49A", "fnd": "20260528" }, { "usr": "ops@example.com", "pwd": "F••••••76", "mal": "MetaStealer", "ccn": "4716••••••••5103", "fnd": "20260524" }, { "usr": "n.silva@example.com", "pwd": "B••••••29", "mal": "Vidar", "src": "gitlab.example.com", "fnd": "20260520" }, { "usr": "finance@example.com", "pwd": "Y••••••84", "mal": "Lumma", "src": "sso.example.com", "fnd": "20260515" }, { "usr": "l.weber@example.com", "pwd": "N••••••62", "mal": "StealC", "cwa": "0x9aB42c…6f81E2A", "fnd": "20260512" }, { "usr": "a.osei@example.com", "pwd": "P••••••38", "mal": "RedLine", "src": "jenkins.example.com", "fnd": "20260507" }, { "usr": "hr@example.com", "pwd": "R••••••15", "mal": "Raccoon", "ccn": "5247••••••••8842", "fnd": "20260503" }, { "usr": "d.chen@example.com", "pwd": "K••••••07", "mal": "Vidar", "src": "vpn.example.com", "fnd": "20260429" }, { "usr": "j.park@example.com", "pwd": "Z••••••24", "mal": "Lumma", "cwa": "0x742d35…95f0bEb1", "fnd": "20260423" }, { "usr": "infosec@example.com", "pwd": "T••••••55", "mal": "StealC", "ccn": "5412••••••••3998", "fnd": "20260411" } ], "more": "864 more records · paginate via p=2" }
Protect Your Organization from Dark Web Threats
Dark Web Monitoring
Our most complete monitoring solution. Track criminal marketplaces and hacker forums 24/7 for your organization’s exposed data. Get alerted the moment new credentials appear.
Learn MoreCompromised Credential Monitoring
Detect leaked employee and customer passwords across stealer logs and third-party breaches. Reset compromised accounts before attackers can exploit them.
Learn MoreHow to Find Data Breaches
Learn the methods security teams use to discover data breaches early. Understand where credentials are leaked and how to monitor for your organization’s exposure.
Learn MoreData Breach Detection
A practical guide to detecting data breaches before they’re exploited. Learn the early warning signs that your data has been stolen.
Learn MoreDark Web Combo Lists
Understand what combo lists are and how attackers use them in credential stuffing attacks. Catch your credentials in these lists before they’re used.
Learn MoreDark Web Search Engines
Discover how dark web search engines work and how security teams use them to find leaked organizational data.
Learn MoreFrequently Asked Questions
Yes, you can check if you’ve been hacked by using a dark web scanner to search for your organization’s exposed data. Our scanner searches third-party breaches, combo lists and stealer logs for your domain’s leaked credentials. If the scan detects compromised data, reset affected passwords immediately, turn on multi-factor authentication as recommended by CISA, and consider continuous dark web monitoring to catch future breaches in real-time.
Enter your corporate domain in our dark web scanner to search criminal marketplaces and hacker forums for your organization’s exposed credentials. The scan checks combo lists and stealer logs, plus third-party breaches, in seconds. This one-time check shows current exposure, but continuous monitoring is recommended since new breaches happen daily. Compromised credential monitoring tracks ongoing threats to your organization.
A dark web scan for business checks whether your company’s credentials or employee emails have been exposed on criminal marketplaces. Unlike consumer scanners that check a single personal email, a business dark web scan checks your entire domain and shows exposure across departments. The results tell you which accounts are compromised so your security team can reset passwords before attackers log in.
Run our dark web scan with your company domain. You’ll see an instant results view showing exposed credentials and the breaches they came from. For continuous coverage, dark web monitoring sends alerts as new exposures appear, either as JSON webhooks into your SIEM or SOAR, or as HTML email to your security team.
No. The scan uses the domain you submit to query our index. We don’t store individual email addresses or domain names submitted to the scanner or share them with third parties.
An empty result usually means one of two things. Either your domain isn’t appearing in the data sources we scan, which is genuinely good news. Or your exposure is in private sources that the free scan doesn’t query, like premium dark web markets and invite-only forums. The free scan covers combo lists and third-party breaches, plus infostealer logs from the major malware families. For continuous coverage including private sources, book a demo.
Combo lists and stealer logs from infostealer infections are indexed within hours of appearing on Telegram channels and criminal markets. Third-party breach data is added as soon as it surfaces.
Have I Been Pwned is great for individuals checking a single personal email against published breach lists. Our scan is built for businesses checking domain-wide exposure. We cover combo lists and infostealer logs in addition to third-party breaches, so you see every leaked account across your domain in one place, with context on the source type and freshness.
Old credentials that have already been reset still show up in our index because they’re still circulating in criminal markets. Attackers run credential-stuffing attacks using old combo lists against accounts that haven’t rotated. Each result includes a first-seen timestamp so you can quickly distinguish new exposures from old data that keeps recirculating. Continuous monitoring lets you filter or suppress alerts tied to specific older sources if you want.
The free scan checks one domain at a time. For multi-domain or subsidiary coverage, book a demo. The API watchlist provides continuous monitoring for multiple domains.
Reset passwords for every affected account first. Force MFA on those accounts if it’s not already enabled. Check authentication logs for the timeframe the leaked credential could have been used. If the source was an infostealer log, the affected employee’s device was likely infected, so other credentials saved in their browser may also be exposed. The NIST Cybersecurity Framework covers incident response procedures in depth. Set up continuous monitoring so you catch new exposed data in real time, not weeks later.
You should monitor continuously, not scan once. New stealer logs and combo lists appear daily on criminal marketplaces. A one-time scan shows your current exposure, but doesn’t protect against tomorrow’s breach. Continuous monitoring with webhook or email alerts lets you respond to new threats as they appear instead of running the scan repeatedly. This is why security teams use automated dark web monitoring platforms instead of periodic manual scans.