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• This feature on WhatsApp can be dangerous for users
• Created a large database with the help of WhatsApp contact discovery feature
• WhatsApp member directory is being sold on the dark web

If suddenly one night WhatsApp Above you get a message saying Hi, you got the job… so? In such a situation, how did your mobile number go to them, the question will be in front of you. Even if this sounds normal to hear or read, it can have a huge impact. Because this matter is very serious. If your WhatsApp number gets leaked or falls into the hands of a wrong person, you can suffer huge losses. This is what has happened now. Shocking information has come to light that the entire WhatsApp member directory is being sold on the dark web.

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Security researchers have said that they managed to scrape phone numbers associated with more than 3.5 billion active WhatsApp accounts, including about 75 crore Indian users, the highest number in the world. More importantly and critically, researchers were able to obtain publicly visible WhatsApp profile photos of 62 percent (or 46.5 crore) Indian users, along with ‘about’ text, companion-device usage, business account information and other profile details. (Photo courtesy – istockphoto)

Researchers have said that they have created a huge database with the help of WhatsApp contact discovery feature. According to research, the contact-discovery feature will help users find and interact with other users. However, this feature can also be misused, which will put users’ data at risk. It can be exploited to collect large amounts of WhatsApp profile data using advanced techniques that exploit the platform’s XMPP endpoints.

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Of the 3.5 billion accounts, researchers were able to scrape the public profile photos of 57 percent of users. In Brazil, 61 percent of the 206 million WhatsApp-linked numbers found had public profile photos. This is the second highest number after India.

Follow these tips to keep your WhatsApp safe

WhatsApp’s privacy-focused option Signal added a new feature last year. With the help of this feature, users can create a unique username without sharing their phone number. Also users can hide their phone number so that no other user can find them from the number or start a chat.

In WhatsApp, users can set their profile details visible only to contacts or to nobody. Also keep Silence Unknown Caller and Two-Step Verification on. Follow the reminders that WhatsApp issues from time to time and always keep your settings updated. Use technologies like rate-limiting and machine-learning to stop scammers.