An intruder using valid credentials is not breaking in. They are logging in. That is why credential-based intrusion remains the single most common way organizations are compromised - and the hardest kind to spot.
Leaked.Domains is our own platform, and it runs as a service in its own right at leaked.domains. It aggregates credential data from breaches, combolists and criminal marketplaces, and matches it against the domains you own. You find out which of your accounts appear, in which breach, and how recently - ideally long before anyone gets around to trying them.
The value is not only the direct hits. Historic passwords reveal how your people construct them, and human beings are predictable: a password from a 2019 breach plus an incremented digit is very often the password in use today. Corporate addresses turning up on unrelated consumer services tell their own story about where else that password has been typed.
Exposure is reported at the organizational level, with continuous monitoring so new leaks reach you as they surface rather than months later. Searches run against domains you own and can demonstrate authority over - no credentials or employee data are retained on this website.
You can run a search and read the full detail over at leaked.domains, or talk to us about folding it into a wider engagement.
Valid credentials make an intruder look exactly like a legitimate user - the hardest thing in security to detect.
Automated replay of leaked pairs against every login surface you expose to the internet.
Historic passwords reveal the scheme behind current ones, and the scheme is usually simple.
Infostealer logs trade in live session cookies, which walk straight past multi-factor authentication.
Corporate addresses used on unrelated services, each one another place your password may have gone.
Focused monitoring of the accounts whose compromise would cost you the most.
Leaked credentials belonging to the partners who hold access to your systems.
Alerting on new exposures as breaches surface, rather than a single point-in-time check.
Full-scope adversary emulation
We pick an objective that would genuinely hurt. The payment run, the source repository, the production database. Then we go after it the way a funded intruder would.
Read more about Red Team OperationsFocused, scoped assessment
When you need certainty about a specific thing: a new platform before launch, an API before it opens, an office before an auditor asks.
Read more about Penetration TestingAttack and defence, side by side
The fastest way to turn a detection gap into a working alert - measured, repeatable, and proven before we leave.
Read more about Purple Team ExercisesDefensive review and architecture
Design-stage security advice from an attacker's perspective, before a weakness becomes something we could exploit.
Read more about Blue Team ServicesOpen-source intelligence
The reconnaissance phase of a real attack, delivered as a report - your organization as your adversary already sees it.
Read more about Digital ProfileApplication security
Powered by CodeSightAI, our own review engine. It catches the logic and authorization flaws that signature-based scanners walk straight past.
Read more about AI-Led Code Review