Warden can read from other processes, though from what i've seen lately. The scans for such have been dormant.
However, warden cannot determine if another process is reading from WoW. (This requires a driver for a system wide hook)
When i refer to the WoW Memory Space i mean memory in the WoW process.
Sorry if i offended you, there's just too many of these types of threads popping up lately.