In 5th Edition we always played that "Is there a Data Bomb?" or "Is the File Encrypted?" was a valid question for the extra hits on Matrix Perception. 6th Edition seems to move that to three net hits.
"With a tie, you can perceive the item’s icon. A
single net hit will give you basic information, such as
device rating, or whatever name the device or icon
calls itself. Two net hits will give you more specifi
information, including individual attribute ratings,
and what programs it is currently running.
Additional hits will give you more information based on what
the gamemaster wishes to reveal."Hopefully the GM wishes to reveal the Data bomb or Encryption...

For Hosts I would go with Host Rating + Sleaze, for Commlinks Rating + Sleaze (usually 0) as the opposed test.
My off the cuff answer.