// STEALERCHECK · BY RANSOMNEWS
How exposed is your domain?
A free, instant exposure check for any corporate domain, credentials in stealer logs, breach sources, harvested session cookies, and 30-day trend data. Free, anonymous, no signup.
Powered by Alerts.bar · Independent · Encrypted at rest · No raw passwords ever exposed
// THE PROBLEM
Most breaches now start with stolen credentials
Information-stealing malware, Redline, Lumma, Vidar, Raccoon, Stealc, quietly extracts saved passwords, browser cookies, session tokens, and crypto wallets from infected machines. The stolen data is packaged into ‘logs’ and sold on Telegram and underground forums for a few dollars per device.
Modern ransomware, BEC, and account takeovers increasingly start there. An attacker buys a log containing a corporate VPN cookie or SaaS session token, replays it, and is inside the organisation in minutes, bypassing MFA entirely because the session cookie has already been issued.
Stealercheck tells you, in seconds, how many credentials and session cookies tied to your domain have shown up in this stolen-credential market, and how active the exposure has been in the past week and month.
// WHAT YOU GET
Five exposure signals, for free
Total exposed credentials
Every record where the domain appears as the credential origin, across stealer logs and the broader credential-dump heap (combolists, paste sites, aggregator dumps).
Staff vs user split
Credentials linked to staff/admin accounts on the domain are counted separately from regular user credentials, so you can spot the higher-impact infections immediately.
30-day & 7-day trend
Every metric is broken down into total, past 30 days, and past 7 days. A stable trend is reassuring. A spike in week-over-week activity is a triage signal.
Session-cookie count
Most modern session hijacks reuse a stolen cookie rather than cracking a password. Stealercheck surfaces the cookie volume so cookie-rotation policies can be costed properly.
Breach-source count
The number of distinct public data-breach datasets in which the domain appears. A useful corroborating signal for whether a domain has been targeted historically.
// HOW IT WORKS
From the underground to your dashboard
Continuous collection
Our data partner monitors stealer-log markets, Telegram channels, and dark-web forums where infostealer operators dump fresh logs. Metadata only, never resold, never raw-credential exposed.
Normalisation & enrichment
Each log is parsed into structured records: source URL, device fingerprint, browser, OS, theft date. Credentials are tied to the source domain, never stored in plain text.
Server-side aggregation
Your domain query goes from your browser to our WordPress server, which proxies the Alerts.bar API. Our API key never reaches the browser. We cache each domain for 30 minutes to keep the upstream load low.
Action, not just data
Aggregate counts are useful for risk briefings. For per-account compromise reports, which specific employees are exposed, when, and with what, verify domain ownership directly with Alerts.bar.
// DATA PARTNER
Built on Alerts.bar
Alerts.bar
Continuously updated credential-exposure index covering data breaches and infostealer logs.
- Continuous collection, leak repositories, dark-web forums, Telegram stealer-log channels, public breach dumps.
- Structured records, every leaked credential is parsed into source URL, device fingerprint, browser, OS, and theft date.
- Privacy-first matching, domains are checked against the index without exposing raw passwords. Free, anonymous lookups.
- Defensive use only, Stealercheck queries the index for detection; underlying credentials are never resold or displayed in plain text.
Read our Alerts.bar review → Independent provider. Stealercheck is the Ransomnews-built front end on top of their exposure data.
// TRUST & COMPLIANCE
How we keep this safe and lawful
Aggregate-only on the free tier
The free Stealercheck lookup returns counts and trend data only. No per-employee details, no individual credentials, no addresses are ever surfaced in this tool, by design.
Domain ownership verification
For specific compromised accounts on a domain, ownership must be proven on Alerts.bar via DNS TXT record or admin-mailbox challenge. Ransomnews does not surface that data, even for verified owners.
Never resell, never expose raw
Underlying stolen credentials are never displayed in plain text, never bulk-downloadable, never resold. Stealercheck is a detection service, not a credential-dump store.
// FAQ
Common questions
Why domain-only? Can I check my email?
Individual email lookups expose personal data and require a different abuse model. The free Stealercheck on Ransomnews is domain-only by design, for individual account checks, head to your password manager’s breach scanner or to Alerts.bar directly.
Will Stealercheck show actual passwords?
No. Stealercheck returns aggregate counts and trend metrics, never raw credentials, never specific account names. That’s a hard product rule for the free tool.
How fresh is the data?
The underlying Alerts.bar index updates continuously. Stealercheck caches each domain lookup for 30 minutes, so two lookups in quick succession will return the same result, but anything more than half an hour old is re-fetched live.
How is this different from Have I Been Pwned?
HIBP indexes corporate-data-breach dumps. Stealercheck additionally indexes the parallel infostealer-log economy, credentials extracted by malware from individual infected machines. Different source, different threat model. Both are useful; Stealercheck covers what HIBP does not.
Where does the data come from?
From Alerts.bar’s continuously updated credential exposure index, which monitors underground markets, leak repositories, and stealer-log channels. We index it for defensive use, with strict operational and legal safeguards.
Can I check a domain I do not own?
Yes, aggregate counts for any domain are public. To see specific compromised accounts on a domain, ownership must be verified on Alerts.bar.
How do I report abuse?
Email [email protected]. We investigate every report and rate-limit/block IPs found to be using Stealercheck for offensive purposes.