Disable/Don't install Flash and Java, disable auto-loading imagines in Mail, and install Safari extensions to block ads, trackers, and unwanted JS. And keep yo

Disable/Don't install Flash and Java, disable auto-loading imagines in Mail, and install Safari extensions to block ads, trackers, and unwanted JS. And keep your system up to date of course (done by default, or at least the notifications to that effect). And don't use the admin user on a day to day basis (done by default).