What it is: A ZLT-branded fixed wireless access gateway sold primarily in African markets (Airtel Nigeria being the original target operator). It ships as two units — an indoor IDU (ARMv7, Linux 4.4.115) and an outdoor radio/modem unit (ODU, MT6890 ARM64 with a Fibocom modem inside).Security posture: Essentially none. The device ships with static credentials shared across all units (Gztz@83583#, gztzadmin/83583000, etc.), unauthenticated telnetd accessible by default, a stack...Read more