Anyone can spy on someone’s Facebook by following activities, feed, posts, etc. To spy on Facebook Messenger, spyware is the only possible solution nowadays. To start spying on someone’s Facebook Messenger, one needs to:
- Find spyware with the relevant feature (option);
- Purchase it and register within the service;
- Get an online account and hit the control panel;
- Follow the installation guidelines;
- Log in again and start monitoring.