The best defense against hackers, is to listen to your groups hacker. If your group doesn't HAVE a hacker, your group will be geeked soon anyway. Even the Sons of Sauron have a hacker at their beck and call... Also, yes, you are SHADOWrunners. When you're public, go ahead and blend in by linking all of your gear to your PAN like every other knucklehead. When you're on the run, you are a professional. Act like it. You do not need your group getting geeked because the security spider noticed the RFID tag in yer underoos broadcasting that you have the latest and greatest in genitalia mods from AZT. Especially on a Mitsuhama run... Go broadcast silent, shut down the PAN, link your cyberware with DNI, check for RFID's before the run, and for the love of the great spirit, read Unwired. They make it simple. Really simple.
And yeah, a cave with a bunch of ten by ten rooms with one orc and a treasure chest doesn't have a lot of high tech security. That's why they are different gaming genres. But, you still have a rogue checking for traps, right? Same thing. If you really don't like it, no one is forcing you to play it.