The only benefit golden connectors have is making your wallet lighter.
@topic:
As a thumb rule: Everything that connects your PC to anything is a potential security risk. USB, WiFi, Bluetooth, Serial Ports, S-ATA, Ethernet Port, ...
All you can do is follow common sense and keep your drivers and anti virus up-to-date and keep an off site backup of docs and pics. Cryptolockers are nasty stuff...