How to spy on WhatsApp messages without a target phone?

To spy on WhatsApp messages without a target phone, one needs to install spyware on it. It works in a stealth mode and remains undetectable. Once set up on a device, it delivers WhatsApp messages to the user’s online account. The latter contains the control panel with the feature called WhatsApp.
Thus, the first step to get started with spyware is to go on its official site, make a payment, and start the installation process. The most prominent spy applications are Flexispy, Spymyfone, SpyBubble, mSpy.