Lockfy App Logo Design, an app that helps you keep your PC secure remotely

This is what None or "Lockfy" (You can use all lower case as well) was looking for in their logo design

Lockfy is a mobile app that allows you to lock your PC and manage it from anywhere using your phone.
* The logo must give the feeling of security and comfort.
* You can use any color/colors of your choosing, but the output must contain a uni-color (one for light background and one for dark) and the colored logo.
* The output must contain Apple Apps and Google Apps files.
* SVG & PNG files are preferred.
* No text preferred. Read more