QUOTE (Titan @ Jul 24 2017, 03:35 PM)

Unlikely.
Wrapper was designed on a faulty idea.
Security through obscurity. Which is no security at all.
In order for the Matrix to function at all, no one will ever be able to change the actual icon type. (1 hit on a Matrix Perception will reveal the icon type, regardless of how it looks. So even if you change the icon of your Assault Cannon to look like a '57 Chevy, the Matrix will still know it is a deadly weapon, and call it out as such.) And even if there is ever a rule to allow it, if it didn't accrue Overwatch Score, then the author should be banned from ever writing again.
Imagine you are a Matrix user in the world of 2070's. You enter a host with its own sculpting, and it is all laid out like a strip club (male, female, both, whatever is your pleasure). Even if you were a legitimate, but new, user how could you get anything done if you didn't have some way of knowing that the dancers were devices on the network, users were the club patrons, data input was nuyen bills, and data output was drinks and / or articles of clothing. Even if you, the user, didn't have any way of knowing that, your system would have to know in order to process data properly.
It doesn't help that Matrix Perception is entirely too powerful at the moment. If you know something unique about your target (such as commcode), and they aren't running silent, you automatically notice them wherever they are in the world - instantaneously. Example: "I am looking for a default Fairlight Caliban icon with a commcode of blah-bla-bla-blah-ba-blah." "Roll a Matrix Perception." Without touching dice: "Done. Automatic."
While you're technically correct, I think you're overplaying the significance of "noticing" someone on the matrix. One correction, though, you only
automatically see the icons of devices within 100 meters. Outside of that range, it takes at least one hit on that Matrix Perception test. And just noticing an icon is roughly the equivalent of me being able to tell that KCKitsune is logged into the forums right now, you don't get any significant information with just the noticing. To see through a Wrapper program, for example, you have to at least suspect something is going on enough to check. In a lower-security area, nobody is going to be taking the time to check each and every individual to see if they are using extra programs to obfuscate their gear.
The most I would expect is a cursory glance to see if any dangerous-looking icons are in the area and move on. If you've used Wrapper on your Ares Alpha to disguise it as an electric guitar (or whatever) nobody is going to notice right away. Even if the Matrix security systems keep track of that stuff, its not like its reporting all that information to everyone, so at best you would have to be attracting the attention of at least a demi-GOD for that information to be automatically at their fingertips. The Local KE officers don't have that, so they don't notice anything without making those tests. So maybe your team attracts the attention of a local KE patrol and their looking you over. One of them is looking your group over (the other one is driving after all), and he's probably spending maybe one action on each member of your team. He isn't jacked-in or anything and he doesn't have the time to waste on some local punks, even if he does suspect that they're up to no good. Still, huge dice pools in Computers isn't exactly a requirement for getting patrol duty, so we're probably talking 5-8 dice on this Matrix Perception test. They're probably first and foremost concerned with you SINs so the first hit is probably going to checking to make sure you're broadcasting your credentials, and I might throw in a general idea of the sort of gear you have attached to your PAN as part of that first hit. Depending on the gear that might fall into a second hit on the Matrix Perception (because your PAN icon is basically a mish-mash of all the devices you have slaved), picking out all that detailed information isn't exactly easy. So spending a third hit on the Matrix Perception would be the first time I would even let a passerby see through a Wrapper, maybe hit 2 if I was being extremely generous. And all of that is assuming I would let them spend that hit that way on the first attempt, and without specifying which icon they were checking for a Wrapper.