If you do nothing else, use a security conscious DNS

The easiest way to protect yourself from malware etc is to use a DNS provider like quad9.net or nextdns.io. They filter all hostname requests thru databases they maintain and WON’T LET YOU go to a known bad host by just not resolving that hostname! Please, for your own sake, do it now.

I won’t go into details about DNS…if you need more info check https://www.cloudflare.com/learning/dns/what-is-dns/