The threats against the Bluetooth wireless industrial networks are caused by a logical design flaw, an implementation flaw or a fundamental weakness; so an attacker can pose a threat to damage the network. This work explores the threats against the Bluetooth industrial networks, when a built-in security mechanism is enabled or not. It puts an exclusive focus on attackers capabilities equipped with protocol analyzer to get the required information for hop sequence synchronization to eavesdrop the Bluetooth communication; with capturing or without capturing the FHS packet, and also...