I want to install Bitcoin Core on my computer. Please tell me what I need to know about security, what needs to be done so that no malicious programs spoil my pc and my Bitcoins are not stolen
Thanks in advance!
security through isolation is crucial. i prefer not to hold bitcoins on the same computer where i download files, browse the internet, etc.
in fact, i strongly suggest keeping your private keys offline. the most convenient way to do that is to set up a watching-only wallet on your online computer, while your offline computer holds your bitcoins:
https://electrum.readthedocs.io/en/latest/coldstorage.html