Have I Been Pwned
Check if your email address or password has surfaced in a known data breach.
Best for
Anyone wanting a fast, free check of whether an email or password has leaked in a known breach.
Skip if
You need detailed breach-record contents or guaranteed real-time coverage of brand-new breaches.
What is Have I Been Pwned?
Have I Been Pwned is a free breach-search service that lets anyone check whether their email address has appeared in one of over a thousand known data breaches, drawing on a database of more than 17.7 billion breached accounts. It also lets users check whether a specific password has previously shown up in exposed credential lists, so they can tell if a password they rely on has already been compromised elsewhere. Beyond one-off lookups, the site offers a free "Notify Me" email subscription that alerts subscribers if their address turns up in a future breach, along with paste-monitoring that tracks when data appears on public text-dump sites. A paid domain-monitoring API is aimed at security teams, developers, and MSPs who need to track breach exposure across an entire organization's email domains.
SpecificationsAI-estimated
Key Features of Have I Been Pwned
Use Cases for Have I Been Pwned
Personal breach check
An individual searches their email address to see if it has been exposed in a past data breach before it is misused.
Password reuse audit
A user checks whether a password they still use anywhere has already appeared in a leaked credential list.
Ongoing breach alerts
Someone subscribes to Notify Me so they are emailed automatically the next time their address appears in a new breach.
Domain-wide monitoring
A security team monitors an entire company email domain via the API to catch employee accounts caught in third-party breaches.
Pros & Cons of Have I Been Pwned
Pros
- Free and instant for individual email or password lookups
- Enormous, frequently updated breach dataset
- Simple, no-signup search for casual users
- Domain-level API supports organizational monitoring at scale
Cons
- Detailed pricing for the domain/API monitoring tier is not published on the site
- A breach match does not tell you which specific password or data field was exposed
- Relies on breaches being reported to and ingested by the service
Frequently Asked Questions
Is Have I Been Pwned free to use?
The core email and password search, plus the Notify Me alert subscription, are free. A paid API exists for domain-wide monitoring.
Does searching my email store or expose my data further?
The site is a lookup tool against existing breach data; it does not require account creation for a basic single search.
Who is this service for?
It is used by individuals checking their own exposure as well as security teams, developers, and MSPs monitoring organizational domains.
What happens if my email is found in a breach?
The search results list which breaches your address appeared in so you can change reused passwords and watch for related fraud.
Pricing Overview
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