For all of its end-to-end encryption, hackers have found a way in, compromising a very small percentage of the WhatsApp 's estimated 900m active users. The vulnerability was focused on the web version of WhatsApp , with hackers spamming random phone numbers with malware loaded vCard . Once the App was 'accepted' by a web-based user of the app, the malware was downloaded and phone numbers and IDs sent back to the hackers. Thankfully, WhatsApp responded quickly and responsibly to deploy an initial mitigation against exploitation of this issue in all web clients, pending an update of the WhatsApp client," Oded Vanunu, security research group manager at Check Point, wrote in a blog post. vCard were told of the vulnerability in late August and had it patched late August .
For all of its end-to-end encryption, hackers have found a way in, compromising a very small percentage of the WhatsApp 's estimated 900m active users. The vulnerability was focused on the web version of WhatsApp , with hackers spamming random phone numbers with malware loaded vCard . Once the App was 'accepted' by a web-based user of the app, the malware was downloaded and phone numbers and IDs sent back to the hackers. vCard were told of the vulnerability in late August and had it patched late August .