This is how you find out whether your login details have been stolen

It's a daily game of cat and mouse: Hackers attack databases of large companies, sometimes cracking them and stealing users' login details, email addresses or usernames and passwords. Shortly thereafter, they publish it on the Internet so that others can also use the data for illegal activities.

At the beginning of 2019, the publication of private data from politicians and celebrities made headlines. They are likely to have been collected from various sources on the Internet and some may also have been obtained through phishing and hacker attacks. They always succeed on a grand scale. An example of this is Facebook: At Easter 2021 it became known that data from more than 530 million users had been published. Around 6 million Facebook members from Germany are said to be affected.

Am I also affected? – Testing with tools

Then you ask yourself: is my data included? There are tools, for example for the Firefox and Safari browsers, that can tell you. You can also search for so-called leaks of your data on websites. We will introduce you to three of them.

	HPI Identity Leak Checker	Identity Leak Checker	Have I been pwned?
operator	Hasso Plattner Institute (HPI) at the University of Potsdam	EIDI of the University of Bonn	Troy Hunt, Internet security expert and blogger
Language of the page	German	German	English
Here's how it works	Enter your email address in the search field. You will then receive an email in which you can read whether login details with your email address have been published on the Internet.	Enter your email address in the search field. You will then receive an email in which you can read whether login details with your email address have been published on the Internet.	Enter your email address or username in the search field. The page then shows whether login details with your details have been published on the Internet.
Info about which accounts the data comes from?	Partially	Yes	Yes
User accounts (according to information provided by the operator)	approximately 12.8 billion, updates as needed	not specified	about 12.4 billion, updates as needed
address	sec.hpi.uni-potsdam.de/leak-checker/search	https://leakchecker.uni-bonn.de/	haveibeenpwned.com

The pages mentioned do not claim to be complete. This means: Even if you get the message that your login details are not public, they may still be floating around somewhere visible on the internet. The pages do not search the entire Internet, but rather contain data sets that the operators have found on the Internet.

What you should pay attention to with such services

Before you use other websites that advertise about stolen logins, you should make sure that

• the providers are reputable (i.e. have a corresponding reputation and have, for example, meaningful FAQs or a data protection declaration on the site),
• Your entered data will not be stored in order to resell it or use it for other purposes,
• Your data will not be stored longer than it takes to compare the databases.

As with all websites, the following applies to such offers: If you have a bad feeling about using them, don't use them!

What to do if your data has been published

• Change the password of the affected accounts immediately.
• a strong password .
• If you use the same password elsewhere, be sure to change it there too! It is best to use a separate password for each account.
• If possible: activate two-factor login. Many people already offer this: For example, you enter a cell phone number and you will receive an SMS with a code every time you try to log in. Only when you type it in will you be able to access your account.

Source:

Checked4you

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