Wrong: https://en.wikipedia.org/wiki/Linux_malware#Threats
Free software can have vulnerabilities. There is nothing magical in the free
software definition that makes it not have vulnerabilities. Technically
speaking, free and proprietary software are the same: software. In fact a
same
HTTPS Everywhere, Privacy Badger and VPNs have little to do with "security".
They deal with "privacy", and, yes, I recommend them too. Unfortunately, ad
blockers are about privacy too (and not only about not seeing ads) because
ads in Web pages now commonly spy on us. I personally use
Do you run any server? If not, incoming connections will not reach anything
and you do not need to configure the firewall in Linux (iptables: you already
have it!), unless you want to filter outgoing connections (but why?).
Well, viruses do not threaten GNU/Linux much (because it has less users,
because its users tend not to run as root, not to install software in e-mail
attachments, etc.). ClamAV can be installed but it almost exclusively
targets Windows viruses. It makes sense to use it on an email server
