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

But Meta argues this is publicly available data anyway. WhatsApp is huge, and its growth came in part from how easy it is to ...

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

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

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.

Researchers from the University of Vienna discovered a serious WhatsApp security flaw. The team showed that an automated ...

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

A security flaw in WhatsApp exposed phone numbers of 3.5 billion users, with profile photos and texts accessible before Meta ...