Security firm says it found a secret account in certain versions of the NX-1200, an appliance for audio-visual systems. The account appears to have been intentionally created, SEC Consult says. AMX Harman, which makes a variety of audio and building control equipment, has patched the problem. SEC Consult said it hasn’t checked to see if the latest fix is effective, but says AMX “will be starting a major security initiative” AMX officials could not immediately reached for comment.”]