whatsapp-census

Hey there! You are using WhatsApp This is the github repository for the extended version of the paper Hey there! You are using WhatsApp: Enumerating Three Billion Accounts for Security and Privacy. Abstract WhatsApp, with 3.5 billion active accounts as of early 2025, is the world's largest instan...

533 Million Facebook Users' Phone Numbers and Personal Data Leaked Online

In what's likely to be a goldmine for bad actors, personal information associated with approximately 533 million Facebook users worldwide has been leaked on a popular cybercrime forum for free—which was harvested by hackers in 2019 using a Facebook vulnerability. The leaked data includes full...

News Wrap: Deepfake CEO Voice Scam, Facebook Phone Data Exposed

In this week’s news wrap ended Sept. 6, the Threatpost team breaks down the biggest news of the week, including: Cybercrooks successfully fooling a company into a large wire transfer using an AI-powered deepfake of a chief executive’s voice and Facebook, Microsoft and a number of universities...

A week in security (May 21 – May 27)

Last week we told you about a Mac cryptominer using XMRig, an overview of Dreamcast related scams, part 1 of decoding Emotet, and what to do about bad coding habits that die hard. We also published the results of our second CrackMe contest. Other news How a pioneer of machine learning became one ...