Smart Search
Data Breach Check – Find Out If Your Email Has Been Exposed
Old data breaches don't expire - if your email showed up in one, it's still exposed today. Run one Smart Search to see what's known to be out there.
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Checked against 33B+ known breach records.
Example preview of the Smart Search interface - not a live search.
What a Data Breach Check Can Show You
Breached credentials get bought, sold, and reused for years after the original leak. A data leak checker gives you a clear, current answer. Here's what this email breach checker can reveal, depending on what's available for a given address:
Known breach exposure
See whether your address turns up in known breach data - not just a guess, an actual check.
Exposed data types
See what kind of information was exposed alongside your address - passwords, usernames, and more, where that's known.
Exposure timeline
Get a sense of how recent the exposure is, so you know whether it's still worth acting on.
How an Email Breach Checker Works
Enter your email address on Smart Search to check whether it appears in known breach or exposure data. It's a check of exposure, not a scan of the account itself, so no account access is involved.
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Enter your email
Open Smart Search and run the search.
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Exposure data is checked
The address is matched against known breach and exposure data. Your account is never accessed.
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Match found
See which breaches referenced it and what data types were involved.
No match
No known exposure in the available data.
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Review your results
Go through what was found, including breaches, data types and timeline.
Where Does the Data Come From?
Every result here comes from data that's already been exposed - nothing is inferred or estimated.
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Data Breaches
Records of email addresses exposed in past, known data breaches.
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Infostealer Logs
Data captured by infostealer malware on infected devices, later circulated online.
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ULP / Combo Lists
Combined username-and-password lists compiled from multiple past exposures.
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Exposed Credential Records
Other credential records tied to the address that have surfaced in exposure data.
Limitations
- A data breach check tells you about exposure, not whether a specific account was hacked.
- Results depend on available data, so the most recent breaches may not show up right away.
- If an email doesn't appear in the results, that's not a guarantee it has never been exposed.
Privacy & Responsible Use
Smart Search supports personal exposure checks, OSINT research, due diligence, and other lawful information-gathering or investigative purposes. Use of the service must comply with applicable laws and Smart Search's Terms of Service.
Smart Search must not be used for harassment, stalking, impersonation, unauthorised access to accounts, unlawful surveillance, or any other illegal or abusive activity. Users are responsible for ensuring that their searches and their use of the results are lawful, appropriate, and respectful of privacy.
Frequently Asked Questions
It's a search that checks whether an email address appears in data known to have been exposed in past breaches.
Appearing in a data breach isn't proof that your email account itself was hacked. It means the address showed up in known exposure data, which usually comes from a breach at a service you used that email to sign up for, not necessarily your email provider. It's a reason to review your account security, not confirmation that an account was compromised.
Don't panic - appearing in a breach is a reason to tidy up your security, not proof that an account was taken over. Change the password on any account that reuses the exposed one, use a unique password for each service, and turn on two-factor authentication where it's offered.
No. It shows whether your email address appears in exposed breach data, but it doesn't confirm that any specific account was compromised.
Consider changing passwords for accounts using that email, especially if you reuse passwords, and enable additional account protections such as two-factor authentication where available. Smart Search provides information, not security remediation services.
Results reflect the data available to Smart Search at the time of the check and may not include the most recent breaches immediately.
Yes. Checking your own exposure is a common, lawful use of this tool.
Yes, when it's for a legitimate purpose - OSINT research, due diligence, professional research, or another lawful use. It's on you to make sure each search, and whatever you do with the results, complies with applicable law and Smart Search's Terms of Service.