How secure are old computers/laptops?
How secure are old computers/laptops?
As we know, buying an older phone can be a big security risk, as it might not get updates anymore. How about laptops? i would install Linux on the laptop. Is it a security risk to buy a used and refurbished computer from maybe 2019?
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2019 isn't terribly old. Just installing Linux serve as a panacea for all of your security woes.
You'll probably want to (or not want to, depending on who you ask) use UEFI. You'll want to harden and containerise and use firewalls and so on... Depends on your threat model.
But, the fundamental question is that you can install Linux and as long as you keep it up to date, a large number of vulnerabilities will be covered. Just not all.
Security is not guaranteed by simply using linux. It may even worsen it.