WhatsApp security test identifies weakness

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WhatsApp, a popular messenger service, has undergone comprehensive security testing funded by the Swiss National Science Foundation (SNSF) to enhance the confidentiality of its platform. With over 100 billion daily messages exchanged, the focus was on strengthening end-to-end encryption and securing chat backups. In this blog post, we delve into the findings of the security test, highlighting the measures taken to protect user data and maintain utmost privacy.

End-to-End Encryption for Message Confidentiality

WhatsApp has long used end-to-end encryption to ensure the privacy and confidentiality of messages exchanged between users. However, the automatic backup feature previously lacked the same level of security. The personal key to the data stored in the cloud was accessible to WhatsApp, leaving backups potentially vulnerable.

WhatsApp security test

Improved Backup Protocol: Enhanced Privacy for Chats

Addressing this concern, WhatsApp introduced a new backup protocol at the end of 2021. Researchers from the IBM Research Institute in Zurich, ETH Zurich, and the University of Wuppertal scrutinized this new system. The study revealed that with the updated protocol, the key is no longer stored at the company but on a separate, secure computer inaccessible to WhatsApp. Users can now access the key themselves through a password and restore their chats in case of a lost smartphone.


WhatsApp’s latest security test, backed by the Swiss National Science Foundation, has heralded an era of unparalleled protection for user data. The revolutionary backup protocol, coupled with user-generated passwords, empowers individuals with full control over their encrypted chats. With the fortress-like defense against brute force attacks, WhatsApp users can communicate with confidence, knowing that their conversations remain safe and private within the sanctum of end-to-end encryption.

As the world of digital communication continues to evolve, WhatsApp’s unwavering commitment to user privacy serves as a beacon of trust and reliability. Embrace this newfound level of security by setting a robust password and embark on a journey of fortified privacy with WhatsApp today.

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