Mid-2010 17in MBP - keeping High Sierra "safe" in 2021
I just gave my 2018 MBP 15" to my son because he is using it for his business and had been using our old Mid-2010 17in MBP which I didn't feel comfortable with him using and not being on the current OS version and security updates. That being said - I can't bear to part with this old 17" MBP - have done the ram upgrade to 8GB and also it has a new OWC SSD and also have a new battery staged to be installed - to max out it's potential and prolong it's serviceable life. Since it's OS is locked in with High Sierra and won't be getting any more security updates I was wondering what the best option(s) are for securing it with maybe a third party security package and whether there are any recommendations? McAfee, BitDefender, Norton, etc. all seem to have Mac OS options and I've read a few reviews but thought the Apple Community would be a good place to ask this. Has anyone had experience with High Sierra and third party security packages and found any stand-outs with the security companies packages for Mac OS?
MacBook Pro 17″, macOS 10.13