So its never got mentioned then there you got.
What combo (anti-virus, plugins, firewall, anti-spam, anti-spyware, anti-malware....) you use on all of your computer.
Here my best combo that i like much : Avira Personal 10, Malwarebytes Anti-Malware, Windows Defender Disabled, PC Tools Firewall Plus, Firefox Plugins > ABP (AdBlock Plus)
Mr.Agent