Have I Been Pwned
haveibeenpwned.com
Have I Been Pwned: Check if your email address has been exposed in a data breach
Have I Been Pwned allows you to check whether your email address has been exposed in a data breach.
FAQs
It's typically used to imply that ... "I was pwned in the Adobe data breach". A "breach" is an incident where data is inadvertently exposed in a vulnerable system, usually due to insufficient access controls or security weaknesses in the software. HIBP aggregates breaches and enables people to assess where their personal data has been exposed. When email addresses ...
Notify Me
Get notified if your email address appears in a future data breach. Have I Been Pwned will alert you when we find your email address is exposed.
Passwords
Pwned Passwords is a huge corpus of previously breached passwords made freely available to help services block them from being used again.
Who's Been Pwned
Every breached website added to Have I Been Pwned appears here on the Who’s Been Pwned page. As of today, there are 932 breached sites listed.
Reddit
reddit.com › r/privacy › turns out i have been pwned, what now?
r/privacy on Reddit: Turns out I HAVE been pwned, what now?
November 21, 2024 -
I usually check haveibeenpwned.com every year or so and it's always come back negative for any breaches, until now. Turns out my info has been in 3 breaches in just the last 6 months, so what would be the best course of action here?
Top answer 1 of 21
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Use a dedicated pw manager, 1 random unique pw per service. Bitwarden, keepass, protonpass etc. Activate totp 2fa whenever possible. Ente auth, 2fas, keepass etc. Use a dedicated email alias service, 1 unique address per service. Simplelogin, addy.io, duck.com, firefox relay etc. Basically to clean up your digital opsec.
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A few things to consider: - Change your email address for everything. Dedicated emails for different services, for example Gaming, Shopping, Personal, Work, Throwaway. - Change your passwords. Use a password manager like Bitwarden and generate long complex passwords or passphrases. NEVER save passwords in a browser. - Enable 2FA on everything possible. Yes, I know this is obvious but you would be really surprised to know that many people stil don't use 2FA in 2024. This is an obvious recommendation, but stop using the same email address for everything. My friend used to use 1 email address for everything (banking, personal, work, gaming, shopping and random sites). He almost lost everything because of this. Don't be my friend.
Why don't services like Have I Been Pwned send email if you haven't signed up? - Information Security Stack Exchange
When a database is breached and my password and email have been leaked I can go onto have I been pwned? and I can see that my password has been leaked. But why wouldn't the service send out an email More on security.stackexchange.com
Turns out I HAVE been pwned, what now?
Use a dedicated pw manager, 1 random unique pw per service. Bitwarden, keepass, protonpass etc. Activate totp 2fa whenever possible. Ente auth, 2fas, keepass etc. Use a dedicated email alias service, 1 unique address per service. Simplelogin, addy.io, duck.com, firefox relay etc. Basically to clean up your digital opsec. More on reddit.com
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November 21, 2024My email has been pwned from the internet archive.
Emails are pwned all the time. The passwords were hashed so they aren’t readily available. But it’s still good practice to change any passwords that were identical or similar to the one that was breached. More on reddit.com
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October 10, 2024My email has been PWNED 17 times, should I make a new one at this point?
It might not be a bad idea, however you will have to deal with the chore of migrating related accounts to the new email and likely it'll get pwned in the future. If you're not already using a password manager, could be good to start using one and over time just store logins to it. Eventually you'll have everywhere you go and could filter for the old email and go across those services and update the email and your password manager record. Now for the old account. It might actually good to keep control of it but don't have anything particularly important attached to it. Make sure its security is as much as you can get it because it's a known email on public lists and people might hit it for shits and giggles. You could always delete it, but I'd say the reason you shouldn't is because someone else might be able to make it. If someone does, it's possible people who know your old email might be emailing you thinking it's you but someone else is controlling the account. Just my 2 cents. More on reddit.com
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August 9, 2024Videos
02:53
How to Check Email or Password Has Been Pwned - YouTube
12:17
How To Use Have I Been Pwned to See If Your Data Was Compromised ...
01:28
Have I Been Pwned? Troy Hunt Explains How Your Emails Get Exposed ...
09:41
You Are In The Hacked 65%. Here's How To Check. - YouTube
Protect Your Email: Check If You've Been 'Pwned' and Stay ...
03:50
Have I Been Pwned Data Breach Checker Honest Review | haveibee...
Clean Email
clean.email › have-you-been-pwned
Have I Been Pwned? What It Means And How To Protect Your Email
November 18, 2025 - When you're pwned, your data was exposed in a breach. When you're hacked, someone has actually accessed your account. Some hacking attempts don't result in immediate information theft.
Quora
quora.com › My-email-was-pwned-in-a-data-breach-Does-that-mean-my-email-was-hacked
My email was pwned in a data breach. Does that mean my email was hacked? - Quora
Answer (1 of 2): Being pwned means that your data was exposed publicly without your consent. The type of information disclosed could be anything, from your email address, to your password, to your credit card details.
PauBox
paubox.com › blog › have-i-been-pwned-adds-2-billion-email-addresses-database
Have I Been Pwned adds 2 billion email addresses database
November 11, 2025 - Have I Been Pwned has processed the largest data corpus in its history, adding nearly 2 billion unique email addresses and 1.3 billion passwords to its breach notification database after security researchers compiled credential stuffing lists ...
Data Breach Lookup
databreach.com
Data Breach Lookup | Check If Your Information Was Exposed
Find out if your personal information was compromised in data breaches. Search your email on DataBreach.com to see where your data was leaked and learn how to protect yourself.
Top answer 1 of 2
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First of all, Have I Been Pwned (HIBP) is not an authority, but a free service provided by Troy Hunt. There are actually many similar service providers, e.g. (some alternatives in an alphabetical order):
- Avast Hack Check
- BreachAlarm by Avalanche Technology Group
- DeHashed
- Firefox Monitor
- F-Secure Identity Theft Checker
- Hacked Leaks Checker (Android App)
- Have I Been Sold by Bitfalls
Think what would happen if all of them starts sending you emails every time your address is involved in a breach! On the other hand, detecting a security breach typically takes long and only portion of the stolen data is ever made publicly available; e.g. in HIBP some of the data is added only days after the breach, but sometimes it takes years. There's a good chance some of the email addresses wouldn't even be in use anymore, even if there was a single authority sending that kind of notifications. Some of the addresses could even be faked.
BTW, not sending unsolicited emails to everyone is not the only way Mr. Hunt respects your privacy; you could even opt-out being publicly listed on the service.
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The feature you describe exists, just not fully automatic.
Go to HaveIBeenPwned and click Notify Me on the top. You can enter your email and it will notify you when a breach occurs and one of your passwords is leaked.
Now to your actual question: Why is this not automatic? I would reckon there are two three simple reasons for this:
- The sheer amount of emails is incredible, and very costly. Take Mailgun as an example: Their premium tier includes 100.000 emails for $90 a month. At first, that might sound like a lot. But you might have breaches with upward of 500 million email addresses in them. Loads of these might be inactive, but you cannot be sure, so you have to send out 500 million emails. A quick calculation (
500 000 000 / 100 000 * 90 = 450 000) reveals incredible monthly costs. Simply said, HaveIBeenPwned probably simply does not have the resources. - Trust. My guess would be that a very low percentage of the users that would be receiving such notifications actually know HaveIBeenPwned. So, getting an email from a service that you've never heard of and that you never signed up for is basically spam - and therefore a breach of trust.
- HIBP is not an authority on breach data. As @EsaJokinen has pointed out already, there are loads of providers out there that notify users on security breaches. Since there is no single authority on such notifications, imagine what would happen if all of those providers would send emails without an opt-in when your account occurs in a breach - you'd be bombarded with notification emails.
Troy Hunt
troyhunt.com › 2-billion-email-addresses-were-exposed-and-we-indexed-them-all-in-have-i-been-pwned
Troy Hunt: 2 Billion Email Addresses Were Exposed, and We Indexed Them All in Have I Been Pwned
November 14, 2025 - Synthient (run by Ben during his final year of college) indexed that data and provided it to Have I Been Pwned solely for the purpose of notifying victims. He’s the good guy shining a light on the bad guys, so keep that in mind as you read on. (Some of the feedback Ben has received is exactly what I foreshadowed in the final paragraph of this post.) A couple of weeks ago, I wrote about the 183M unique email addresses that Synthient had indexed in their threat intelligence platform and then shared with us.
F-Secure
f-secure.com › us-en › articles › have-i-been-pwned-4-steps-to-take-if-your-email-has-been-compromised
Have I been pwned? 4 steps to take if your email has been compromised | F‑Secure
May 16, 2024 - And when it comes to the question “Have I been pwned?”, “pwned” means that someone has taken control of your email address, or a user profile that has been created with it.
Malwarebytes
malwarebytes.com › home › digital footprint scan
Data Breach Victim? Free Digital Footprint & Data Breach Scan
October 16, 2025 - Were you a part of data breach? See what information is available about you. Get a free personal exposure report to your inbox now.
Avast
avast.com › en-us › hackcheck
Has Your Email Been Hacked? Free Data Leak Check | Avast
A simple password — or worse, a common password like “123456”, can be decrypted in seconds. With this and your email, they can access any account that uses that email/password combination, pilfering your data, stealing your identity, and ransacking your digital life.
TeamPassword
teampassword.com › blog › have-i-been-pwnd-what-to-do-when-it-happens
TeamPassword | What to Do if You've Been Pwned: A Complete Guide
Visit the Website Navigate to the official Have I Been Pwned? website: https://haveibeenpwned.com/ Enter Your Email Address In the search bar, type in an email address you want to check and click the "pwned?" button.
DMARC Report
dmarcreport.com › blog › have-i-been-pwned-check-data-breaches-simple-way
Have I Been Pwned? A Simple Way to Check for Data Breaches – DMARC Report
September 17, 2025 - Input your email in the search bar and click the “pwned?” button. This instant action leads to a database check that sifts through over 12 billion records. As your data travels through this vast pool of information, you might feel a knot of anxiety tighten in your stomach; after all, no one wants to discover they’ve been compromised.
WhatIsMyIP.com
whatismyipaddress.com › home › data breach check
Check if Your Email Has Been Exposed in a Data Breach
August 27, 2019 - Anonymously search across multiple data breaches to see if your email address has been exposed and what actions you should take as a result.
Barracuda Networks
blog.barracuda.com › 2021 › 05 › 27 › adventures-of-my-pwned-email-address
Adventures of my pwned email address | Barracuda Networks Blog
March 17, 2023 - Royal Panda is an online casino that someone has signed up for, with my email address. Outside of the first instance, the remaining account creations have been rather tame – simply more spam that I did not sign up for. However, it has been interesting to see the life of a pwned valid email address.
LinkedIn
linkedin.com › posts › timcason_have-i-been-pwned-check-if-your-email-has-activity-7265541342238253056-b7Hg
Have I Been Pwned: Check if your email address has ...
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Wikipedia
en.wikipedia.org › wiki › Have_I_Been_Pwned
Have I Been Pwned? - Wikipedia
1 month ago - The primary function of Have I Been Pwned? since it was launched is to provide the general public with a means to check if their private information has been leaked or compromised. The service collects and analyzes hundreds of database dumps and pastes containing information about billions of leaked accounts, and allows users to search for their own information by entering their username or email address.
X
x.com › haveibeenpwned
Have I Been Pwned (@haveibeenpwned) / X
November 13, 2013 - Have I Been Pwned · @haveibeenpwned · Check if you have an email address or password that has been compromised in a data breach. Created and maintained by · @troyhunt. Australiahaveibeenpwned.comBorn December 4 · Joined November 2013 · 1 Following · 169K Followers ·
PowerDMARC
powerdmarc.com › blog
Have I Been Pwned? Steps To Check, Fix, And Stay Safe
July 11, 2025 - Click the “pwned?” button. The site will instantly check its database of known data breaches and inform you if your email has been involved in any incidents.
Google
docs.cloud.google.com › security › google security operations › have i been pwned
Have I Been Pwned | Google Security Operations | Google Cloud Documentation
The breach included 37 million unique email addresses, usernames and passwords stored as unsalted MD5 hashes.", "DataClasses": ["Email addresses", "Passwords", "Usernames" ], "IsSensitive": false, "Domain": "last.fm", "IsSpamList": false, "BreachDate": "2012-03-22", "IsFabricated": false, "ModifiedDate": "2016-09-20T20:00:49Z", "Title": "Last.fm", "Name": "Lastfm", "AddedDate": "2016-09-20T20:00:49Z", "IsVerified": true, "LogoPath": "https://haveibeenpwned.com/Content/Images/PwnedLogos/Lastfm.png" }], "pastes": [ { "Date": null, "Source": "AdHocUrl", "EmailCount": 36959, "Id": "http://siph0n.in/exploits.php?id=1", "Title": "BuzzMachines.com 40k+" }] }, "Entity": "[email protected]" } ]