ScreenSaverNow provides an easy way for you to active your screensaver. In fact, a screensaver in conjunction with a password may very well be the only way of protecting your information from others when you are away from your Mac and still need to keep it working…. Using a screensaver is still the most effective way of protecting your privacy while you are away from your Mac (even for this day and age). A Customizable Global Hotkey or a mouse click activate your screensaver instantly.