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How To Know If Your Data Has Been Compromised In a Data Breach

How To Know If Your Data Has Been Compromised In a Data Breach.

The internet is insecure. This is a fact that cannot be ignored or ignored, especially if you plan on trusting online services with your most sensitive data. As you read this, attempts are being made to hack computer systems around the world. Perhaps you have already become a victim of a data breach and do not even know about it.

Fortunately, there are ways to check if your data is at risk of data breaches. Online services such as Have I Been Pwned, DeHashed, and BreachAlarm will allow you to check any references to your personal information, such as email addresses or passwords, in previous data breaches.


If you want to quickly check if your data is at risk of data leakage, you can try using Have I Been Pwned. The Have I Been Pwned database, run by security expert Troy Hunt, includes (at time of publication) 416 website hacks and over nine billion hacked accounts.

The Have I Been Pwned service allows you to search the database for any registered examples of email addresses or passwords in databases for compromised data. Obviously, we always recommend that you take extra care before entering a password into a web form, even when using such a service.

However, if your password has been compromised, it is already at risk anyway. We’d suggest changing your passwords regularly and using a master password manager so you can use multiple strong passwords for each of your accounts.

If your email address or password is found during any of the data leaks recorded on the site, he will warn you. As for passwords, there will be no information about which sites were hacked, but you will find out how often the password itself appeared during data leaks.

It is possible that if you use a fairly common or insecure password, other people will use the same password as well. Users with password “password123” or similar weak password, please note and change immediately.

For email addresses, HIBP will provide you with a little more detail. This includes additional information about which sites or hacks the email address was found on. For security reasons, information on some violations is limited.

If you would like to be kept informed of any future data breaches, please click “Notify me” at the top of the HIBP website. You will then receive an email notification when your email address is discovered in future leaks.


While Have I Been Pwned provides a fairly simple search for emails and passwords, DeHashed‘s search engine for data leaks is much more powerful. It not only allows you to search for email addresses and passwords, but it also allows you to verify any data, including your name or phone number.

With over 11 billion records, it has a broader set of searchable data for users. It supports powerful search arguments like wildcards or regex expressions. There is also a list of hacked sites that you can check first, with over 24,000 searchable databases.

Like HIBP, DeHashed is completely free to use, although in the free plan some results are censored. If you need full access to the DeHashed database, it will cost you $ 1.99 for one day, $ 3.49 for seven days, or $ 9.99 for 30 days.

While unlimited searches are expensive, DeHashed provides a broader set of data for finding violations.


If DeHashed is too complicated to use, then BreachAlarm is another unified search service that works similarly to Have I Been Pwned. It is a much more limited service, with over 900 million email accounts listed in the various abuse databases it maintains.

BreachAlarm is easy to use, with an easy to read list of violations that users can check, and like HIBP and DeHashed, a search engine that you can use to verify your data. There is also a data leak finder for companies that you can use that allows you to search for any mention of the associated domain name.

The email results will show the date your email address was hacked, but they will not provide you with information about where the data breach occurred. For more information, you will need one of the other listed services.

Keep your data safe online

There is no reliable way to protect your data from data leakage. Every time you register your data with an online service, that data is transmitted and may be compromised in the future.

To stay as secure as possible, you should also consider using a password manager like LastPass or Dashlane to help you generate secure passwords for each of your accounts. Be sure to also check these services regularly to keep abreast of any new data leaks.

How To Know If Your Data Has Been Compromised In a Data Breach

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