TLDR; you don't. Best advice I have, for what it's worth is to wipe and reformat from a known clean image regularly. If you haven't been hacked yet, stands to

TLDR; you don't. Best advice I have, for what it's worth is to wipe and reformat from a known clean image regularly. If you haven't been hacked yet, stands to reason you wont be hacked going forward. That said, I often install packages I don't fully vet, and grant permissions I probably shouldn't, either in the name of curiosity (how else do we learn and experiment), or necessity.