Secure Login Equivalent on OS X On Windows you can configure "Secure Login" so that you have to press Control + Alt + Delect to show the login screen like so:



Does this feature exist on OS X or is there a third-party application that can achive this?
Short answer: No.  This feature does not exist on Macs.

On a side note, it's also useless in Windows too.

A long time ago in a galaxy far, far away, CTRL+ALT+DEL sent a hardware interrupt to the PC's BIOS (which would immediately reboot the computer in the DOS days).

That interrupt also had the happy side-effect of breaking things like keyloggers and programs designed to steal your password, so when Windows NT arrived on the scene, Microsoft trapped that interrupt to prove that you were a real, live human sitting in front of a keyboard.

That has not been the case for many, many years.  I have no idea why we're still dragging this stupid three-finger salute around after all these years (tradition maybe?)  It offers no meaningful security these days and I personally disable it with Group Policy on every domain I administer.