Thanks for useful advice. I have read somewhere that Mac security is by-built very strong as compared to Windows.
It's BSD Unix based with a MAC twist. So yes, very solid and secure. The most vulnerability is
when the USER accepts a program that has something inside... or the browser. There also apps
that are questionable that have ended up and or are on the APP store. The most horrible things
can happen when you leave your pc unattended - as anyone who knows what there doing can
easily employ nefarious stratagies against it as with any system. Next is running things in root.
That said, I would advise ANY user, to have at least two Admin accounts as well as the root account.
In addition to those you should probably have a few standard user accounts on your system such as
for watching movies or testing code. I would only use ONE of my admin accounts on a regular basis
while reserving my backup admin account if it's actually needed. The root should rarely ever be used.
If you're really paranoid you can also set up other steps of security passwords or to monitoring ports/firewall.
In addition to having the separate user accounts I have found it necessary although rarely, to also have
secondary Web Browsers installed just in case you have fatal or near fatal happenstance to your main browser.
IN addition to having these extra browsers, user should be very careful about extension or plugins as many problems
I have encountered were through them, which IMO is the average users weakest link.