This is the 5152nd most frequent Russian word.
настройки
Settings.
Here 'настройки' means 'settings', referring to configurable parameters for security.
Я изменил настройки безопасности на своем компьютере.
I changed the security settings on my computer.
Here 'настройки' refers to configuration options or modes within a software program.
Настройки этой программы позволяют расширить её функциональность.
The settings of this program allow to expand its functionality.
In this usage, 'настройки' refers to setup configurations for a physical device.