@Stake:
TVH Host rating 7, Firewall 10, You see 22 different marks on the host.
Remember, in SR5 if you found a device on the inside of the building that is wireless enabled and also slaved to the Host, in order to mark that device you would have to roll against the Host's ratings which are protecting the device and would also suffer noise penalties based on the distance and obstructing materials between you and the device. Essentially, there's no way to get around having to roll against a Host's stats unless you get a physical DNI connection to one of the devices slaved to the Host. Even with a data-tap, you need to be DNI connected to the data-tap (pg. 440 corebook).
@Everyone:
What's up with spoilers on the forums? Are they not working anymore?