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WhatsApp by the Numbers
I dived into anonymized metadata published after a #WhatsApp security issue that exposed 3.5B phone numbers
-Android rules (81%)
-iOS dominates in rich markets
-Monaco = multi-account heaven
-China is niche but enterprise-heavy
https://www.mobile-hacker.com/2025/11/20/whatsapp-by-the-numbers-what-anonymized-metadata-from-a-security-flaw-reveals/
Mobile Hacker WhatsApp by the Numbers: What Anonymized Metadata from a Security Flaw Reveals - Mobile Hacker The dataset originates from metadata published in connection with a security study titled “Trivial WhatsApp Security Issue Exposed 3.5 Billion Phone Numbers.” That research demonstrated how a simple flaw could reveal phone numbers globally.
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