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BSI safety test use - how to

  • Oct 27, 2025
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The BSI has set up a safety test for concerned Users: this check whether your E-mail address has been cracked. Botnet-the Hacker stole in April 2014, more than 18 million E-mail addresses with passwords. Already in January, a similarly large number of data came into the hands of the Criminals. How you can check with the help of the website of the Federal office for information security (BSI) your e-mail address, we will explain here.

BSI security test - please check your E-mail address

  • If your E-mail address and the associated password are affected, you can learn here.
  • Enter your E-mail address and agree to the privacy terms and conditions. Now, you get a four-digit Code displayed. This you should note.
  • Then open your E-Mails: you will get immediately a message, if your E-mail address is affected. Check - before you open the E-Mail whether the four-digit Code from the above step with the Code in the subject line the same. Otherwise, could the E-Mail is spoofed, and Malware included.
  • Update 7.4.2014: a User, whose e-Mail addresses were stolen in April 2014, notified by the BSI, this time automatically by Mail if it is the Accounts of the Provider Deutsche Telekom, Freenet, gmx.de, Kabel Deutschland, Vodafone and web.de . Details and accurate background can be found in this CHIP-News.
Search mask of the BSI

How long does the email reply take at the BSI security test?

  • In General, the BSI sent the notification e-Mail immediately after you have entered your e-Mail address. This means that you should have after a few minutes, still no Mail received, should not have been one of the affected Account from the Hack.
  • However, it can happen at high load, the mail server according to the BSI, that you will receive the Mail only after a few hours.
  • For details on how to "wait" in BSI-Mails you can use the practice tip "that No Mail from the BSI" it read.
  • By the way: when In doubt - if, during the Review of the BSI-Server hangs - you can leave your Email address review.
"Real" Mail from the BSI

Tips for people Affected with the stolen data

The following things you should consider if you are affected:
  1. You promptly change the password of your Mail account. All the other Accounts with this password are no longer safe. You should see the accounts with a new, secure password provided. At best, you use for every website a different password.
  2. Since the data is likely to have an installed Malware, which were distributed, you should check your Computer with an up to date virus scanner check.
  3. Also, check whether your PC is part of a so-called "botnet". How you find this out and what ever is explained in this article.
  4. For more tips we give in the article: "BSI Test positive - what to do?".

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On the BSI Website first of all your e-mail address and confirm the privacy statement.

On the BSI Website first of all your e-mail address and confirm the privacy statement.

On the confirmation page, an individual four-digit Code of Numbers and letters is displayed. Write down this.

On the confirmation page, an individual four-digit Code of Numbers and letters is displayed. Write down this.

If your Email address is affected by the botnet-Hack, to get you from the BSI a Mail in your Inbox. Pay attention before Opening the Mail that the previously noted Code is also called as "identifier" in the subject line of the Mail is really from the BSI.

If your Email address is affected by the botnet-Hack, to get you from the BSI a Mail in your Inbox. Pay attention before Opening the Mail that the previously noted Code is also called as "identifier" in the subject line of the Mail is really from the BSI.

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