WIRED

A Simple WhatsApp Security Flaw Exposed 3.5 Billion Phone Numbers_WIRED:CD88362C34A5DE873D344CA09AD5ED47

Description

By plugging tens of billions of phone numbers into WhatsApp’s contact discovery tool, researchers found “the most extensive exposure of phone numbers” ever—along with profile photos and more.
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Basic Information

ID WIRED:CD88362C34A5DE873D344CA09AD5ED47
Published Nov 18, 2025 at 14:00

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