matthew_w100 wrote:Has anyone ever actually had a virus?
Definitely in the late 1990s, yes.
I can't recall having any personally for 10 years+ - but still clean a few per year off friends and relatives PCs.
Symptoms seem to change over time. Aside from crypto-ransom stuff most stuff I've cleaned off recently has had no explicit symptoms, just 'the laptop was running slow'. As I understand it a lot of current malware focuses on spying and botnet. My perception is that Android is nowadays the weakest ecosystem in widespread use. e.g. apps masquerading as games/utilities which make facebook posts by the user to promote themselves etc.
I think it's mostly a user behaviour thing. If you're prone to looking at unknown websites, installing small utilities/games etc then you're more at risk. Certain roles are also quite vulnerable - e.g. a lot of viruses have targeted accounts payable teams, and unfortunately the way many ebilling systems work, makes it difficult to distinguish between a genuine e-bill and a bit of malware.
For my relatives laptops, I just stick with Windows Defender - and set-up the laptop so that the account that they login for day-to-day use isn't an Administrator account.