Matrix Screen Locker is a security program with temporal block in your PC Matrix style, as it hides the desktop and Matrix effects fall down from the top part of the screen.
Through an icon you find in the system tray next to the clock with the shape of a X, you will click it and the program will start working but previously you need to introduce the user’s password.
The program offers an animated image, with or without sound to protect the screen when there’s no activity on the user’s part.