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Step by step, how to know if you are being spied on WhatsApp Web

In July 2021 WhatsApp announced the arrival of multi-device support. This new version allowed access to the messenger from the PC without the need to have the mobile connected. However, the fear of being spied on is growing among users. For this reason, Meta offers a new tool to check if someone exploited the browser code.

Doubts about the integrity of the browsers used have led Meta to take a decisive step. Thus, in collaboration with the security company Cloudflare, WhatsApp announced the incorporation of Code Verify an independent, open source software that increases security levels.

The open source of the Code Verify extension has some important benefits. First, it allows other companies, groups, and individuals to apply this same level of transparency to their own apps and freely share new ideas with each other to help improve the feature.

“With this change in mind, we have been looking at ways to add additional layers of security to the WhatsApp web experience. Starting today, you can use Code Verify, an open source web browser extension that automatically verifies the authenticity of WhatsApp web code that is sent to your browser.

How to know if the browser where WhatsApp Web is running is crashing.

This tool is an extension for mainstream Chrome, Firefox and Microsft Edge that lights up depending on the existing risks in communications. This makes it very easy to know if something is wrong in the WhatsApp Web session.

And although the application has security encryption in communications from one end to the other, through this extension it is possible check if encryption is working correctly and confirm that the messages being sent are not at risk.

How CodeVerify works

The three colors of communication.

The three colors of communication.

Once Code Verify is installed, it will analyze the encryption code of the chat to contrast it with that of the people on the other side of the communication. Depending on the security risks, Code Verify will light up different colors to indicate which concerns should be adopted.

Therefore, once the extension is pinned to the browser toolbar, it has a visually changing icon depending on three different states.

  • Green. The encryption keys match and the extension has been able to validate that the security of WhatsApp was not compromised.
  • Orange. Something in the browser is interfering with the Code Verify check. It may also happen that the verification request has been exhausted. In both cases you have to reload the page and pay attention to the icon.
  • Red. There are security risks in communications established with WhatsApp servers. If this icon appears, you must close the open sessions of WhatsApp Web and update the browser.

To ensure transparency, the firm points out that the extension does not record user data and does not share any information with WhatsApp. It also does not read or access the messages you send or receive. In fact, neither WhatsApp nor Meta will know if someone has downloaded the extension. Also, the Code Verify extension never sends messages or chats between WhatsApp users to Cloudflare.


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