Unpatched Side-Channel Vulnerability in WhatsApp and Signal Poses Ongoing Risks

Based on the information provided in the message, a side-channel vulnerability affecting WhatsApp and Signal, first reported in 2024, remains unpatched at the protocol level. Further testing has shown that probes can be sent every 50 milliseconds without alerting the target user, leading to excessive battery drain and mobile data consumption. There are no visual notifications or indicators for the user, although the activity can be detected through technical analysis. The associated GitHub repository has been updated to address vulnerabilities in npm dependencies, but the core protocol-level issue persists. This vulnerability highlights the ongoing privacy risks for users of these messaging platforms and underscores the need for continuous security updates. Cybersecurity professionals should be aware of this issue and consider implementing additional monitoring and mitigation strategies. However, as the original URL could not be accessed, this analysis is based solely on the provided summary and may not include all details from the original article.