Back from my Christmas vacation, so I had some time to look into this topic further. I've studied up on the mechanics of Sombra, and as it turns out, Sombra's hacking and how it works with other abilities is ultimately a little more intricate than just "removes shields".
Her interaction with shields is actually mixed, depending on the type of shield in play. EMP disables and strips Lucio's shielding completely and still allows the target to be hacked, but Zarya's bubbles...
Posted: Dec 27, 2016