Virus's can also be spread via discs (floppy AND CD) I've even heard of them coming from them free discs you get with PC magazines.
A firewall will not stop a virus it can only prevent unauthorized access of your PC.
What is ransomware and how do I protect my PC from WannaCry?
What I learned from my mentor, Oscar-winning VFX supervisor Phil Tippett
Siri vs Google Assistant
Synology invites you to visit them at Insomnia on 26th – 29th August. Book your tickets now and visit Synology.