Inherent in the new "Wireless MAtrix". To hack most doors, alarms, and whatnot - the Hacker (yes, Hacker, no longer Decker) or Technomancer needs
to be on-site, and preferably within ten or twenty meters of whatever s/he wants to fiddle with (signal strength, and all that).
Also, Hacking now happens at the same timing-pace as physical actions; even going into full "slump over and drool" VR like the pre-4E days, only buys you an extra Initiative Pass. In less total immersion - where the Hacker can still walk around the physical world without being led by someone else - it takes as long to perform a Matrix action, as a physical action. So the Hacker's choice becomes "hack the door lock, or shoot my pistol at the security guy".
The whole world is now hackable, too. Wireless computer network control is pervasive enough that everyone
has a PAN - that's "personal area network" - centered on their CommLink ... which serves as PDA, phone, and control interface for much of the user's software, and carried gear. Even, possibly, GUNS. So the Hacker has even another choice: "Hack the security guy's gun
, and lock it in 'SAFE' mode". Or, possibly - if the Security guy wasn't smart about securing his PAN - "Hack the security guy's cybereyes
, and turn them off!"
Shadowrunners have to consider the same issues, of course. But there ARE options for PAN security ... bit of gamespeak: equip all your cyberware, and possibly worn electronics - AR glasses and the like - with SkinLink capability. Then pile your cybernetics together into a single meta-Node (so for Matrix actions, it all acts like a single system/target). Subscribe that meta-node exclusively to your SkinLink-capable CommLink, and load the beefiest FireWall program your wallet can handle onto that CommLink. It's not perfectly
secure, but it's definitely "a hard nut to crack" - without the inconveniences of turning the connectivity of your cyberware off
Oh, almost forgot .. that mention of "AR glasses" ...? Even the non-Hackers get a small taste of the Matrix, because "A
eality" is literally everywhere
. As you walk down the street, you are treated (subjected?) to visual phenomenon that don't exist in the real world - signs, pop-ups, and so forth. If a road is closed for construction, you might see (in AR) a big flashing yellow WALL closing that street off. If you have a GPS-and-directions service, you don't have to look aside to see the map and it's directions ... you will see the very road(s) you should be following highlighted or outlined, right in front of your eyes. And hear a voice giving you direction, in your own ears. And noone else sees or hears either of those, unless they've hacked into your PAN.
It's really kind of neat, overall. As if the Matrix and the "meat world" are overlapping a bit, blurring together at the edge.