Umm...are we sure about this? Reading through the physical combat section, beginning on pg 104, it goes through the 5 steps of the combat process. 1) grab dice, 2) distribute Edge, 3) roll dice and spend Edge, 4) Soak some damage, and 5) bring the pain. It's that #4 step that sticks out to me.
Now, in the Matrix section, beginning on pg 175, it goes through just the 4 steps of using the Matrix. 1) grab dice, 2) distribute Edge, 3) roll dice, and 4) determine effect. No Soak some damage step. Even in the cybercombat section (such as it is), beginning on pg 179, there's no mention of soaking damage, just how to determine a device's Condition Monitor. Data Spike, pg 181, says a successful action causes damage equal to Attack Rating/2 + net hits on the action test. If you're running the Biofeedback program, it causes Stun damage to a cold-sim target, Physical damage to a hot-sim target. The way I'm reading it, there is only a "soak" roll if the target is running the Biofeedback Filter program, pg 184.
If I'm wrong, great. The inconsistency between physical combat and Matrix is pronounced on this one issue and my hacker-player isn't too thrilled about it.
Not to drag Magic into this technological discussion, but damage from direct spells seems to be of the non-soaked variety, too. Indirect ones can still be "dodged" and later "soaked" per normal combat rules.