Information Technology Reference
In-Depth Information
The isolation phase
Mobile phones are by design intended to communicate via cellular phone networks,
Bluetooth, Infrared, and wireless (Wi-Fi) network capabilities. When the phone is connec-
ted to a network, new data is added to the phone through incoming calls, messages, and ap-
plication data, which modifies the evidence on the phone. Complete destruction of data is
also possible through remote access or remote wiping commands. For this reason, isolation
of the device from communication sources is important prior to the acquisition and examin-
ation of the device. Isolation of the phone can be accomplished through the use of faraday
bags, which block the radio signals to or from the phone. Past research has found inconsist-
encies in total communication protection with faraday bags. Therefore, network isolation is
advisable. This can be done by placing the phone in radio frequency shielding cloth and
then placing the phone into airplane or flight mode.
