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WhatsApp: check if your phone number was compromised in the most recent massive data leak

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WhatsApp suffered a new massive data breach a few days ago, which ended up exposing the phone numbers of almost 500 million accounts, as well as 2.5 billion email addresses from users around the world. In the specific case of Peru the portal cybernews -who discovered and reported the cyber attack– revealed that more than 8 million people were affected.

Yes ok WhatsApp He pointed out that he does not consider that his platform has been hacked to obtain user information, the truth is that the database began to be sold through some of the forums of piracy most popular of Internet exposing the compromised accounts to attacks from smishing & vishing.

How to know if I was affected by the WhatsApp data leak?

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It is important to note that due to the volume of compromised accounts, it is quite likely that we have been affected by this attack without even realizing it. Fortunately, cybernews the portal of cybersecurity which reported the leak and sale of data in hacking forums, has a tool capable of informing us if our information was part of this breach.

“Our tester has a 500GB database of hashed emails” indicates cybernews in your page. If you want to consult the tool, you just have to enter the following link and follow these instructions:

  • Type your email address or phone number into the search box.
  • Press ‘Check Now’.
  • Check the search results and check.
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Behind this, cybernews It will give you a few recommendations to keep your credentials safe, such as changing your email password or applying new security methods for your phone number.

This is the message that will appear if your WhatsApp account was compromised in the most recent leak. 

The phone numbers of millions of WhatsApp users for sale

cybernews indicated the approximate amount of user data according to your country. Among the nations with the largest number of leaked phone numbers are Egypt (44 million), Italy (35 millions), USA (32 million), Saudi Arabia (28 million) and France (19 million). In the specific case of our country, the cybercriminal indicates that there are 8,075,317 telephone numbers of Peruvian users in said database.

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the signature cybernews points out in his report that he was able to verify the authenticity of the data sold by the hacker based on a sample that was provided to him by the same author (1097 phone numbers Kingdom United and 817 of USA). The seller did not reveal how he managed to obtain all these numbers and only suggested that he used a strategy to collect them, ensuring that absolutely all of them belong to active users of WhatsApp.

The author of the report mentions that the information about the users of WhatsApp could have been obtained by collecting information at scale (scraping), technique that goes against the terms of service of the app. However, since there is no way to verify this, this is just speculation based on previous cases where massive data posted online was obtained in this way.

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A full time tech enthusiast with a passion for writing. Religiously follow everything new happening in the tech world and share my two cents with my audience here.

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