Re: outside access to computer
Completely, no. Offline would be the only complete way to keep the information on it safe, that and inside a vault with a combination and a key. You need a router, and then possibly a good hardware firewall, as well as a good software firewall. That would be three layers of defense, if you're really worried. The router and software firewall should be ok. Keep in mind that although it seems likely someone is going to hack your computer, the chances of it happening to you are about the same as getting struck by lightening. Not unless you have made your "computer" friends mad at you- then you may have more to worry about...
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