Which is that? For years (and come to think of it, this goes back to the 2000's or even 90's), AV / antimalware software comes across as scareware, using tricks to ensure you're afraid of not having it.
And second, who here has ever had a virus in the past ten years?
I can't actually remember the last time any anti-malware software (built-in or otherwise) actually detected anything like a traditional virus, but there are plenty of computer users who are rather more trusting of links (including ones that download executables) in emails and the like. I don't doubt if I used a machine with all protection turned off and with the level of caution of a typical non-technical user it'd be hit with malware sooner or later. Most likely a browser plugin capable of reading passwords as I type them etc.
I purchased a license of ESET Internet Security, and full disclosure: back in early 2017, I worked at an ESET-licensed reseller as a Presales and Support Engineer, so I know how to fine-tune it and all the ins and outs.
By nature, it's very lightweight (330 Mb RAM footprint), but you can fine-tune it even more if you want.
> And second, who here has ever had a virus in the past ten years?
We the people at HN are tech-savvy and of course will not get infected, but recently I spotted malware out-in-the-wild via Facebook Ads[0].
Your usual grandma/grandpa using the computer to connect with loved ones and play Candy Crush Saga will get infected, if they are not by now.
Some people tell me: "bUt tHaT'S BeCaUsE ThEy aRe vIsItInG WeIrD SiTeS," well, even if you stick to the common social media sites and usual news sites, you will get infected.
I cannot emphasize this enough, but you're responsible of your own computer so I will not proselytize you into purchasing AV software.
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[0]: https://twitter.com/IvanMontillaM/status/1604308301579051009
https://www.av-comparatives.org/tests/performance-test-octob...
https://www.av-test.org/en/antivirus/home-windows/windows-10... (less useful..)
AV comparatives has some other tests also that might be of interest to HNers:
https://www.av-comparatives.org/tests/uninstallation-test-20...
https://www.av-comparatives.org/tests/false-alarm-test-septe... (reason why you might not want to pick the fastest product..)
I recall reading a study a few years back saying how it's safer to browse porn sites than it is to browse what most would call "common" sites such as retailers.
Unless you really mean megabits, 330MB for AV doesn't seem low as I've seen Windows Defender use roughly the same.