Avoid the crises and financial damage caused by data leaks.
What you avoid
- Your domains and emails monitored continuously
- Alert as soon as an access is put up for sale
- Fixed before it is exploited
Detect your stolen access before it costs you millions.
Stealint monitors cybercriminal marketplaces and alerts you as soon as one of your company's credentials is put up for sale.
Access attackers' data to protect your clients.
What you get
- Red team, exposure, incident response
- Under a mandate signed by your client
- Fixed price per scope
The threatThe journey of a stolen credential
How Stealint protects you from hackers.
- 5M+credentials analysed every day
- 100+collection sources
An infostealer is a piece of malware, often hidden in cracked software or a fake update, that steals the passwords and session cookies saved in an employee's browser. This data is then resold on Telegram channels and cybercriminal forums. Stealint monitors these platforms and alerts you as soon as a credential from your domain is put up for sale, before an attacker can use it.
1
Infection
An executable laced with an infostealer is run on an employee's machine
Cracked software downloadFake update
2
Theft
Browser passwords and cookies
PasswordsSession cookies
3
Exfiltration
To the attacker's server
Machine log
4
Resale
On cybercriminal platforms
Telegram channelsCybercriminal forums
Stealint detects it here and alerts you
5
Exploitation
Data theft, ransomware, fraud
Data theftRansomwareFinancial fraud
Who it's forOne data source, many uses
Who is Stealint for?
Monitoring plan
Companies that want to protect themselves from data theft
See the planMonitoring plan
MSSPs that want to protect their clients
See the planMonitoring plan
SaaS vendors, e-merchants and banks that want to protect their customers' accounts
See the planMonitoring plan
Local authorities and hospitals, prime targets for ransomware
See the planAudit plan
Pentesters who want to run realistic audits using real, current attacker techniques
See the planAudit plan
CERTs and incident response teams tracing a compromise back to its source
See the planMonitoring planFor companies
Get alerted before the attack.
A credential spotted in time is a password to change. Spotted too late, it's a crisis.
| Selection | Status | Alert | URL | Login | Password | Country | Infection |
|---|
Real-time alert
As soon as it goes on sale, not weeks later.
Full context
Infected machine, date, URL: everything you need to fix it fast.
One-click triage
Your analysts handle an alert in seconds.
An all-inclusive monthly subscription
The platform
- Dashboard
- Full victim context
- Multi-user
- Integration via REST API
Alerts
- Real-time alerts
- Email notifications
- Monitoring of emails, domains and usernames
Audit planFor pentesters
Audit with attackers' data.
Stealint automatically sends an authorisation request to your client so you can review their compromised credentials for the duration of the engagement.
- Client
- Acme SAS
- Scope
- acme.com, *.acme.com
- Mission
- Red team · 30 days
- Pentester KYC verifiedverified
- Request sent to clientsent
- Mandate signaturepending
Red team
Test the access that is actually for sale.
Exposure audit
Show the client what is already out there.
Incident response
Trace the leak back to its source.
A fixed price per audited scope
Pay per scope
Fixed priceNo results?
No charge.
No subscription: you only pay for the scopes you audit, whatever the number of results.
- You open a caseStealint tells you whether results exist that threaten your client's scope.
- The client signs the mandateStealint confirms that your client authorises you to access the data by sending them a simple mandate to sign electronically.
- You review the resultsOnce the mandate is signed, you review the results in Stealint. Secure payment via Stripe. The client is informed of the results you review.
- A fixed price, no surprisesThe same whether the scope has 3 or 3,000 results. No charge if there are no results.
Safeguards for the pentester and their client
Verified identity
KYC for every pentester.
Client consent
Electronically signed mandate.
Limited access
To the scope and duration of the mandate.
Transparency
The client knows what is shared with you.
A simple, transparent mandate signed by all three parties
See how Stealint fits into your pentestHide the workflow
01Scoping
-
Engages a pentester for an audit of its scope Company to Pentester
-
Agrees the audit scope scoping with the client Pentester to Company
02Authorisation
-
Opens a case KYC, client, contact, mandate duration Pentester to Stealint
-
Has the mandate signed electronically by the client, via Verified Credentials Stealint to Company
Access authorised · limited to the scope and duration of the mandate
03Results
-
Delivers the results available in Stealint Stealint to Pentester
-
Informs the client of the results shared with the pentester Stealint to Company
ResearchStealint for investigations
Infostealers are a weapon for defenders too.
Case study · NoxHunt · 20 April 2026
Inside the computers of DPRK IT workers
On 8 April 2026, investigator ZachXBT exposed a network of North Korean IT workers working remotely under fake identities. The leak came from a machine infected by an infostealer.
Building on these findings, the NoxHunt team retrieved data on two of these workers from Stealint and reconstructed their profiles: VPNs, development tools, freelance platforms and crypto wallets.
Investigation · NoxHunt · 11 February 2026
Unlucky Chucky: uncovering Solonik's personas
In early 2026, the threat actor “Solonik” posted a string of alleged databases on cybercriminal forums, including one claiming 17 million Instagram accounts.
By cross-referencing forum archives and his Telegram accounts, NoxHunt linked him to his former aliases. Credentials stolen by an infostealer from a machine where his forum accounts were saved point to a likely origin in Indonesia.
FAQQuestions we get asked
Frequently asked questions
What is Stealint?
Stealint is the compromised-credential detection platform developed by NoxHunt, a French cyber threat intelligence and digital investigation company. It monitors cybercriminal platforms and alerts organisations as soon as one of their credentials (domain, email address, username) is put up for sale.
What is an infostealer?
An infostealer is a piece of malware, often hidden in cracked software or a fake update, that steals the passwords and session cookies saved in an employee's browser. This data is then resold on Telegram channels and cybercriminal forums. Stealint monitors these platforms and alerts you as soon as a credential from your domain is put up for sale, before an attacker can use it.
How do I know if my company's credentials are for sale?
With the Monitoring plan, Stealint continuously monitors your domains, email addresses and usernames. As soon as an access is put up for sale, you receive a real-time alert and an email, with the context you need to fix it fast: infected machine, infection date and affected URL.
How is this different from traditional data breach monitoring?
Breach databases mostly list data from hacks of third-party services, often old. An infostealer log is captured directly on an employee's machine: it contains recent credentials, sometimes with session cookies, that an attacker can use immediately. Stealint focuses on these logs, at the moment they are put up for sale.
What sets Stealint apart from similar services?
Stealint stands out in two main ways:
- Coverage and data quality: Stealint monitors every active infostealer family: Lumma, Vidar, Raccoon, RedLine, StealC… More than 5 million stolen credentials are analysed every day.
- Its offer for pentesters: Stealint lets pentesters access the data threatening their clients' scope, after being explicitly authorised by them through an electronically signed access mandate. Shared data is encrypted. For full transparency, the client is informed of all the data Stealint makes available to the pentester.
Can a pentester legally access their client's compromised credentials?
Yes, with the Audit plan and only under a mandate. Stealint verifies the pentester's identity (KYC), has the client sign the mandate electronically, limits access to the scope and duration of the engagement, and informs the client of the results shared.
How much does Stealint cost?
The Monitoring plan is an all-inclusive monthly subscription, priced according to your scope. The Audit plan is billed at a fixed price per audited scope, whatever the number of results, with no charge if there are no results.
ContactDemo, quote or new case
Contact
With valid credentials, an attacker no longer needs to hack in. They log in like an employee.