Undisclosed WhatsApp vulnerability lets governments see who you message

Engineers warned Meta that nations can monitor chats; staff fear Israel is using this trick to pick assassination targets in Gaza.

Sam Biddle

IN MARCH, WHATSAPP’S security team issued an internal warning to their colleagues: Despite the software’s powerful encryption, users remained vulnerable to a dangerous form of government surveillance. According to the previously unreported threat assessment obtained by The Intercept, the contents of conversations among the app’s 2 billion users remain secure. But government agencies, the engineers wrote, were “bypassing our encryption” to figure out which users communicate with each other, the membership of private groups, and perhaps even their locations.

The vulnerability is based on “traffic analysis,” a decades-old network-monitoring technique, and relies on surveying internet traffic at a massive national scale. The document makes clear that WhatsApp isn’t the only messaging platform susceptible. But it makes the case that WhatsApp’s owner, Meta, must quickly decide whether to prioritize the functionality of its chat app or the safety of a small but vulnerable segment of its users.

“WhatsApp should mitigate the ongoing exploitation of traffic analysis vulnerabilities that make it possible for nation states to determine who is talking to who,” the assessment urged. “Our at-risk users need robust and viable protections against traffic analysis.”

Against the backdrop of the ongoing war on Gaza, the threat warning raised a disturbing possibility among some employees of Meta. WhatsApp personnel have speculated Israel might be exploiting this vulnerability as part of its program to monitor Palestinians at a time when digital surveillance is helping decide who to kill across the Gaza Strip, four employees told The Intercept….

https://theintercept.com/2024/05/22/whatsapp-security-vulnerability-meta-israel-palestine/?utm_medium=email&utm_source=The%20Intercept%20Newsletter

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