Darkside (District 4 Labs)
Operator: District 4 Labs LLC
Database for people and threat research using compromised data, leaks and other personal information.
Leaks, Breaches & Dark Web
Product
Darkside, the database and research platform from District 4 Labs.
Availability and source date
Active
As of: 16 October 2026.
No functionality test has been performed.
Use in OSINT research
Connects personal identifiers to records from leaks and other collected sources. The provider processes third-party data; individual details may be incorrect or outdated.
Queries
| Input | Result | Result type |
|---|---|---|
| Person name | Matching records and other linked identifiers. | Retrieved |
| Email address | Matching records from processed compromised data and identifiers linked to the email address. | Retrieved |
| Phone number | Matching records and other linked identifiers. | Retrieved |
| Username / alias | Matching records and other linked identifiers. | Retrieved |
| IP address | Matching records and other linked identifiers. | Retrieved |
| Crypto wallet | Matching records and other linked identifiers. | Retrieved |
| National ID number | Matching records and other linked identifiers. | Retrieved |
| Passport number | Matching records and other linked identifiers. | Retrieved |
| License plate | Matching records and other linked identifiers. | Retrieved |
| Platform user ID | Matching records and identifiers linked to the platform user ID. | Retrieved |
Features
- Searches names, email addresses, telephone numbers and usernames.
- Links identifiers within processed datasets.
- Covers hacked databases, combo lists, malware datasets and marketing lists.
- Provides access through a web interface and REST API.
- Integrates with Maltego, Blackdot Videris and Falkor.
Categories
- Leaks, Breaches & Dark Web
- Breach search
Coverage
Geographical coverage
Worldwide, according to the provider
Dataset
According to the provider, tens of billions of compromised records and other personal information from the deep and dark web. The collection also contains financial, travel and employment information.
Access
Requirements
Access for vetted customers through the web interface, API or integration partners. Demo on request.
Export
Selected government customers can obtain larger datasets. Public information on standard export formats is unavailable.
Provider
District 4 Labs LLC
Country of establishment
Unknown
Interfaces
API
Available. REST API with advanced search options. Access and terms are agreed contractually.
MCP
Not documented. Not described in the provider sources reviewed.
AI agents
Not documented. Not described in the provider sources reviewed.
Usage note
The linked terms cover access through integration partners and permit only the agreed lawful research purposes.
Legal note
For personal data, check the legal basis and the specific research assignment.
Limitations
- The collection contains compromised and sensitive personal data.
- The provider does not control which details each original leak contains.
- Access and coverage depend on the contract.
Guides and practical reports
Unknown