Researchers from the University of Vienna revealed a vulnerability in WhatsApp that exposed 3.5 billion users' phone numbers ...

By plugging tens of billions of phone numbers into WhatsApp’s contact discovery tool, researchers found “the most extensive ...

Researchers at the University of Vienna were able to pull 3.5 billion phone numbers by leveraging a “simple” method that took ...

Sounds simple, right? But quick account switching has been unavailable to mobile WhatsApp users. This beta appears to show native support for a feature in WhatsApp settings called "Switch Accou,nts" ...

The government of the UAE issued a critical security warning against a dangerous “zero-day” vulnerability discovered in ...

A new report reveals a WhatsApp flaw that exposed 3.5 billion users’ phone numbers. Meta says the issue was responsibly ...

WhatsApp’s huge global reach has always come from how easy it is to find people on the app; you only need their phone number. But that same system also ...

Austrian researchers used a WhatsApp contact-lookup flaw to map 3.5 billion phone numbers, revealing how basic metadata can build a directory of accounts.