Yes. On closed networks it probably doesn't matter unless you are really paranoid and concerned with stuff like passive wireless packet sniffers. I don't think that's a real issue for experimental music performance :-). On the open internet a bit of security just makes sense; you'd zip up your bag and probably button up your back-pocket before entering a crowd as well. We are trading convenience for safety (and vise-versa) and should strive for a trade that makes sense in our context. Opening everything makes perfect sense on closed Lans, not so much -to me- out in the open.

Just some well-intended advice.

Kas.