WhatsApp security flaw exposed 3.5B phone numbers – including yours [U]
Update, 7:11 p.m. ET: A Meta representative reached out to 9to5Mac and provided the following statement:
“We are grateful to the University of Vienna researchers for their responsible partnership and diligence under our Bug Bounty program. This collaboration successfully identified a novel enumeration technique that surpassed our intended limits, allowing the researchers to scrape basic publicly available information. We had already been working on industry-leading anti-scraping systems, and this study was instrumental in stress-testing and confirming the immediate efficacy of these new defenses. Importantly, the researchers have securely deleted the data collected as part of the study, and we have found no evidence of malicious actors abusing this vector. As a reminder, user messages remained private and secure thanks to WhatsApp’s default end-to-end encryption, and no non-public data was accessible to the researchers.”
A massive WhatsApp security flaw exposed the phone number of almost every user on the planet – despite the fact that parent company Meta had been alerted to the vulnerability way back in 2017.
Security researchers were able to use what they described as a “simple” exploit to extract a total of 3.5 billion phone numbers from the messaging service …
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