Out of interest, why, Roger?
I'm ex-military, and won't put my name up here - hence the possibly pretentious but definitely anonymous 'Shady' moniker... After several years playing hide and seek in Northern Ireland, you get that way. I am security vetted to a significant level, and I work alongside the premier forensic computing laboratory in the UK... After 18 years of thinking that way, I tend to make a 'security assessment' almost subconsciously with anything.
Having said all of that, it's a cost/benefit analysis. Of course it's more secure to run your computer with no internet connection at all, ever - the so called 'air gap', that guarantees no virus problems, no hackers, and no spam - but the internet is a fantastic tool that has fundamentally changed peoples' lives and working patterns. (witness this board...)
Do you ever use a credit/debit/switch card to pay for a restaurant meal? Have you ever let it out of your sight? (prior to the new chip and pin systems). If so, that's a far more serious potential risk than using an encrypted and pasword protected system like this. If not, then you are a natural for a job in intelligence... :wink:
On the other side - what's the worst that could happen? You might, theoretically, allow someone who was overlooking/ snooping the opportunity to see what's in some of the folders on your computer (you can define the access to what folders you want available). Unless you are an international porn baron, or an Al Quaeda organiser, that's probably not a major disaster. Don't get me wrong - if it was a computer with sensitive business/commercial info on it, I'd be wary - but the potential utility exceeds the potential risks, for me.