This paper proposes a first line of defense early warning system via a host-based form of intrusion detection that can alert security administrators to protect their corporate network(s). This innovative technique operates through the implementation of battery-based intrusion detection (B-bid) on mobile devices by correlating attacks with their impact on device power consumption using a rule-based host intrusion detection engine (HIDE). HIDE monitors power behavior to detect potential intrusions by noting irregularities of power consumption and works in conjunction with a host analysis signature trace engine (HASTE) to provide protection to both mobile hosts and, by extension, their affiliated network.