WhatsApp, a popular messaging application, has encouraged its users to upgrade the app to stop a security breach.

The recent security breach allowed hackers to sneak malicious software on the phones by calling the target using the app. WhatsApp is used by 1.5 billion people all around the world. So, this breach has also resulted in trouble for the parent company Facebook.

Financial Times, who first reported this security vulnerability, cited a spyware dealer as saying that the tool was developed by an Israel-based firm called the NSO Group.

To plug the breach, WhatsApp has encouraged its users to upgrade the application to the latest version.


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