I’m an information security consultant so I live in this world every day. I think a good starter would be CompTIA’s Security+ and Network+ study guides. You don

I’m an information security consultant so I live in this world every day. I think a good starter would be CompTIA’s Security+ and Network+ study guides. You don’t need to sit for the exam, but they are both entry level certifications that were required by my college when I was attending (although I studied for them in school, I had the actual certification requirement waived so ymmv) so the education materials should be pretty accessible by anyone who works in IT. I think the Network+ is recommended before Security+ and you can find decent study material recommendations online.