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WhatsApp security flaw exposed 3.5B phone numbers – including yours [U]

WhatsApp security flaw exposed 3.5B phone numbers – including yours | Close up of a crowd of people all using their smartphones

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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WhatsApp will now warn scam victims against screen-sharing bank details

WhatsApp will now warn scam victims against screen-sharing bank details | Screen grabs of new warning screens in WhatsApp and Facebook Messenger

A tactic used by a growing number of scammers is to impersonate help centres in order to trick victims into sharing their screens via WhatsApp. By doing so, they can obtain sensitive information like bank account details and verification codes.

Meta says WhatsApp will now intervene when someone attempts to use screen sharing with an unknown contact during a video call. The company will also proactively flag suspicious-looking chats in Facebook Messenger …

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Hackers chained Apple and WhatsApp flaws in ‘advanced spyware campaign’

A few days ago, Apple fixed a vulnerability on iOS and macOS that “may have been exploited in an extremely sophisticated attack against specific targeted individuals.” Now, new details have emerged, and it appears that the hacking campaign also leveraged a now-fixed WhatsApp flaw to target its victims. Here are the details.

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Image: Meta

WhatsApp starts testing AI-powered writing suggestions on iOS [U: launched]

Update, Aug 27: The feature was officially launched today for English-speaking users, according to the official WhatsApp blog. Original post below.

In the latest TestFlight release for its iOS beta testers, WhatsApp rolled out a tool called “Writing Help,” which suggests replies based on the tone set by the user. Here’s how it works.

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