The last time I was infected with anything -- ANY THING -- it was around 1996. I worked in the US Dept of Ed. Somebody from the Asst Secretary for Management brought down a disc of data for me to process and analyze.
The disc contained the "STONED" virus. I was able to purge the system of it in about an hour or so. This kind of problem never occurred for me again -- at work there during the day, nor at my home after teaching night-school in a computer lab infected by viruses brought back from China after the holidays.
I was just very, very careful. I've been careful ever since. My departed younger brother, when he was alive and working at a resort, was using a computer that I and the fam-damn-ily built for him. He just let his prurient interests get away from him, visited an XXX site, and infected that thing to the point that I had to reformat the hard disk and reinstall all his software -- that was around 2005.
I get spam and phishing e-mails all the time. I'm damn sick and tired of going through the morning routine of purging them using the web-browser access to my e-mail accounts so they don't come into my MS Outlook Inbox. I've got to define some rules in Outlook, and otherwise compile a list of all the institutions, businesses, personal friends, political organizations, banks and so on to add to a "safe senders" list, and then divert all the other CRAP to a Junk folder.
Sooner or later, anything that comes along carrying a Trojan or virus could be mistakenly clicked and activated.
I"ve got MalwareBytes on top of Windows Defender -- they work well together. This security problem has been one of the largest drawbacks to a personal computing culture in which the machines were supposed to save us time and increase productivity.
THAT'S WHY I SUPPORT CAPITAL PUNISHMENT FOR THOSE GUILTY OF ALL THIS FOOLISHNESS. SHOOT 'EM IN FRONT OF THEIR FAMILIES ON CHRISTMAS DAY, I SAY!!