Data Breach Check Tool – Have I Been Pwned?
Wondering if your information is really secure online? Use the data breach check tool to determine if your data has been exposed and, if it has, what you can do moving forward.
What is a data breach?
A data breach, or data leak, is a security infringement in which information is taken or accessed by an unauthorized third party. Data breaches are seriously damaging to both companies and consumers. Not only are they expensive to recover from, but in some cases, the information stolen can damage lives. Therefore, using tools like the data breach checker is essential to staying on top of your data security.
Data breaches occur most often with big companies that keep sensitive user information on file. Even if a company has high-quality information security, hackers can crack through layers of protection to expose large amounts of information. Data breaches can expose names, phone numbers, email addresses, birthdays, Social Security numbers, online account logins, credit card numbers, bank account numbers, and more.
Sometimes data breaches affect personal computers, although the term typically refers to non-personal attacks. Hackers use malware, viruses, and broken links to steal your information. Use the free leaked data check tool above to assess if you've been the victim of a data breach.
How does the data breach check tool work?
To use the data breach check tool, simply enter your email address into the search bar and click the Lookup button to begin a search. The tool will scan the web and assess if your information was leaked in any breaches. If it was, you'll see a list of the breaches and more details on the incidents. Make sure to follow the suggested steps in order to protect your accounts against further damage.
Am I at risk for being a victim of a data breach?

Unfortunately, yes; all Internet users are at risk for being the victim of a data breach. Ideally, if you kept yourself off social media, revealed nothing on the Internet, and kept your sensitive data files under lock and key, you could live without fear of a data leak. However, this is not the case in reality.
Even if you take every security precaution to protect your online accounts — which you still should do — you’re not in the clear. Some technologically savvy users can glean information about you from your IP address, including your general location. The What Is My IP homepage shows you your IP address, but you'll have to take additional steps to hide it from others, such as using a virtual private network.
Furthermore, financial institutions, medical facilities, tax documents, and job applications all require that you submit your Social Security number as well as your name, date of birth, and private contact information.
There’s no way to exist in the United States without giving your Social Security number to at least a few places. Every application, portal, or person you submit to should be incredibly secure. Even so, it’s out there, and data breaches can happen anywhere.
But be encouraged: there are security measures that you can take to protect yourself and your personal information better. Though nothing is guaranteed, following the tips in this article helps limit your chances of becoming victim to a data breach.
What could happen if your data is leaked?
If your data is leaked, you could face several consequences. Identity theft is a serious threat; if a criminal has the right information, they could impersonate you and essentially steal your identity. They can open credit cards, make purchases, or apply for loans using your name and credit. This can have devastating consequences for victims.
Once your information has been exposed, it could also open you up as a target for phishing attacks or other scams. Scammers can use the leaked data to personalize attacks, increasing your risk of falling for these schemes.
Identity theft and phishing schemes can both lead to financial loss, which is a serious risk for most. Additionally, if information like your bank account logins is leaked, someone can gain access to your finances without your knowledge, causing further damage.
Three ways to protect against a data breach
Limit who has your private information
As mentioned above, many reputable sources require you to submit a Social Security number, driver’s license information, or payment card, which can be difficult.
However, be aware that a company may ask for information and still not require that you submit it all. Many medical offices request your Social Security number but do not require it. Always ask the company or person you’re giving it to if the information is absolutely necessary.
You can also select which credit cards you apply for. Most credit checks require your valid Social Security number. But refrain from applying for individual store cards, for example, unless you frequent that shop often. This distributes your information, and if history is any indication, chain stores like Target or Best Buy are at greater risk for security incidents that expose your information than your bank is.
Be smart about using your information online and offline
Data theft happens even within reliable institutions. But you can save yourself from unnecessary risk by ensuring every company you give it to is legitimate. Don’t enter personal data onto unsecured online forms.
Always ensure a website is HTTPS protected, meaning you can see the secure lock symbol in the upper left corner of the address bar. If a website says “not secure” or shows an open lock, absolutely do not input your information.
Don’t use weak passwords or the same password across accounts
Only use each password once. Admittedly, this can’t stop a data breach from happening. However, data leaks that only expose your account username and password prevent more information loss if you don't duplicate passwords across accounts.
If you use the same username and password for your Target account as you do for your bank login, a data breach on Target’s website will also put your bank accounts at risk. Creating one strong password and using it across different accounts is tempting, but this is dangerous. Try using a password manager to create and manage unique passwords across your online accounts.
This is especially important in the face of a password leak. Strong passwords won't save you from a password leak; however, unique passwords will. Using different passwords on your accounts will prevent a hacker from getting into multiple accounts with the data from a single password leak.
However, as important as using different passwords is, it's equally important to create strong passwords to keep your individual accounts secure. If you have separate logins with weak passwords, someone with your basic identifying information could still successfully hack into other accounts. Keep everything separate and secure; don't let a smaller data breach create a domino effect.
Has my data been breached?
If you're wondering if your information has been breached, the best thing to do is check in the data breach check tool above. Enter your email and allow the data breach checker to check for data leaks. The tool will check for email leaks, assessing whether your personal data has leaked in a breach. Even if you don't think you're at risk for a breach, it's better to check and know with certainty.
Notorious data breaches
As mentioned above, data leaks happen to companies of all sizes. Unfortunately, customers are most affected by big company breaches. These are five of the worst big-company data breaches in the last decade.
- Yahoo, in August 2013, had over three billion accounts exposed in a data breach. They successfully stole user account information, though users’ financial information remained uncompromised.
- LinkedIn, in June 2021, found data from 700 million of its users posted on the dark web. A hacker was able to steal data from the site, including email addresses, phone numbers, social media handles, and geolocation data. It affected over 90% of the company’s user base.
- Facebook, in April 2019, had two datasets from the Facebook app exposed, affecting 533 million users. Hackers exposed users’ account names, Facebook IDs, and phone numbers on the dark web.
- Target, in November 2013, saw hackers gain access to their computer operating system. This exposed the full names, phone numbers, email addresses, payment card numbers, and credit card codes of 41 million customers.
- Equifax, in September 2017, suffered a data leak that exposed the personal information of 147 million users. This breach was one of the worst for users. Names, home addresses, phone numbers, birthdays, Social Security numbers, and driver’s license numbers were all stolen.
If your information was associated with any of the above companies during the years of the breaches, performing a data leak check is essential. Use the data leak checker above to scan the web for your information and assess a database of leak sites.
What to do if your data was compromised
Think your email leaked? Worried about an info leak from a company you gave personal information to? Quick action is essential if you believe you've experienced a data breach.
Review the data exposed in the breach. Was it account usernames and passwords? Did it include credit card information? Was it leaked from a search engine, or was it an email password leak? The next steps vary depending on the exposed information.
Make sure to change the passwords for all accounts exposed or potentially exposed in the data breach. If the same username and password combination was used on other accounts, also change those passwords.
Use passwords that combine uppercase and lowercase letters, numbers, and symbols; the strongest passwords have all four elements. If you have difficulty creating strong, random passwords, use a password generator. Never use the same username and password combination across different platforms.
Furthermore, set up two-factor authentication if possible. You want to know if anyone tries to access your accounts, but hopefully, they won't be able to once you've updated your login information.
If your credit card, bank account information, or Social Security number was leaked, contact one or more of the major credit bureaus to report a fraud alert. You can also freeze your credit. This keeps criminals from using the breached information to open a credit card in your name and putting you on the hook for the charges. It may be an inconvenience. However, if you freeze your credit, you can temporarily unfreeze it before making a big purchase or taking a loan yourself.
After a data breach, the most important thing is to be cautious. Watch out for phishing or spam emails and monitor your credit reports and bank accounts for strange charges or withdrawals. Not all breached information makes it into circulation. It's possible you won't experience any issues, but better to be safe than sorry.
How can I check on my personal information?
There are several different ways to check on your personal information; once again, it depends on the information you're concerned about. Using the above data breach tool is a great step, as it can locate stolen information and provide notice.
Another good option is using an overall alert program, like Norton's LifeLock. Norton’s premium LifeLock gives you alerts if they find your Social Security number, medical or driver’s license numbers, bank account information, credit card numbers, or insurance policies associated with someone that isn’t you or located on the dark web.
Though neither Norton nor WhatIsMyIP.com can save your personal information from theft, they can alert you if they find your information illegitimately used. The tools check your hack risk, check personal information, and attempt to stop its spread. Whether exposed in malware attacks, social engineering attacks, or data breaches, having the knowledge supersedes having nothing.
WhatIsMyIP.com has provided this data breach check tool courtesy of Have I Been Pownd at haveibeenpwned.com.
Frequently asked questions
What should I do if I identify a data breach?
If you identify a data breach within your company, immediately contact your IT department or manager to resolve the leak as quickly as possible. Make sure to contact all those affected by the breach once you assess the damage. Moving forward, work to improve your data security system to prevent future breaches if possible.
Can I check if my data has been breached?
Yes, you can check for data breaches using the data breach check tool above.
What is the most common source of data breaches?
The most common source of data breaches is hacking. Once hackers enter a server, they access all the information inside, including users' login data, emails, phone numbers, and other personal information. However, leaked emails and other shared information can also result in data breaches.