WhatsApp easily exposed 3.5 billion people's phone numbers

[phillynews215]

WhatsApp is huge, and its growth came in part from how easy it is to find people using the service - all you need is their phone number. Unfortunately, this also means every WhatsApp user's phone number was, up until very recently, easily obtainable by anyone -including any nefarious hacker group out there. This has been revealed by Austrian researchers, who were able to extract phone numbers for all 3.5 billion WhatsApp users. And for around 57% of those 3.5 billion users, the researchers were also able to access their profile photos, and for another 29%, the text on their...





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