security update

Ignore System Preferences> Software Update.

Connect your mac to your router via cable rather than WiFi.

Click on the link below,

https://support.apple.com/kb/DL2054?viewlocale=en_US&locale=en_US

Once downloaded double-click to install.

Sorce928 wrote:

2020-005 security update 10.14.6 times out. How do I get it to download?

Use the Safari Browser to download directly:

Download Security Update 2020-005 (Mojave)