My 30+ years with “internet security” still leaves me wondering if there is such a thing.
First, I will suggest the following:
IMO - There is no such thing “free” on the internet. Either we pay with money, bitcoin, or our privacy. 99.99% of companies do not believe that your privacy has any value, so when you get anything free, you probably paid with your ‘right-o-privacy’.
I think you’ll need to better define what you mean “internet security”.
You probably know about all the browser add-ons to include some mediocre semblance of privacy, cookie and anti-SMRC medicine for your network. But caution - you may need protection from the protector.
Personally, I doubt there is any such thing as “internet security” - just people flogging ‘apps’ that make money for them and a more public you.
Wait a few days - you will probably get many great ideas here. Also, if you’re considering anti-virus plus internet ‘safety’ the the place to avoid are review sites. Most are just people reviewing products they sell as affiliates. Your best bet, is check the unbiased labs at AV-TEST - they don’t sell what they test. The "other sites ‘reviews’ are opinions, not real tests.
use a few browser add-ons to manage the constant barrage of SMRC’ers that are trying be embedded on my system.
I don’t do anything personal with Win 10. I dual boot Win 7, or 10. We has a bit of control with Win 7, but . Win 10 controls us.
I started out not knowing much about the ‘privacy movement’ but privacytools.io put the road to privacy on the map. Do check out the PrivacyTools.IO main site quick ideas.
Surveillance Self-defense has a great list of excellent tools as well.
I use TOR client for private stuff, but financial.
I’m learning Linux because most SMRCers depend the wide-open Win 10 to worm their way into your life and bleed your privacy out.
IMO - Set up a good privacy system, and you’ll have good internet security.
Goo luck @tale and be sure to keep a eye out on your post for better answers.