Abstract
The purpose of this paper is to provide a simplified methodology to extract information stored in the internal memory of phone like chat logs, contact history, email history and user login password of a user using a Yahoo Messenger and Yahoo Mail application App on an Android Phone .This will help us classify the fore-mentioned artifacts as per their forensic importance to a forensic investigator depending upon the nature of the digital crime being analyzed. The introduction of smartphones into the market has opened up a whole new scope of possibilities on how a mobile phone can be used by a user. The modern day smartphones are capable of strongly competing with computers in terms of the functionality and features that they can provide. Some of these features include email support, instant messengers, interactive games, GPS navigation, music player, document viewers and readers. The feature which we intend to primarily focus on in this paper is Yahoo instant messenger applications and Yahoo mail client application that can be freely downloaded and installed on Android Smartphone. The recovery of digital evidence in the form of user names, Passwords, conversations and contacts details on Instant messengers and mail clients may yield valuable information regarding the suspect/victim’s chatting and email history or their contacts list details.
Highlights
Instant messenger applications are those applications that support instant messaging communication in a bidirectional manner at real time speeds between users who are logged in to the messenger
Once logged in to the messenger using a registered username and password, the user can communicate via text, audio or video with anyone who is added to their contact list and is logged on to the messenger at that instant
An email client allows a logged in user to send or receive emails on the smartphone
Summary
Instant messenger applications are those applications that support instant messaging communication in a bidirectional manner at real time speeds between users who are logged in to the messenger. The more recent instant messengers provide text messaging and audio and video communication at real-time. The modern day smartphones support instant messaging thereby increasing their functionality well beyond the basic call sending/receiving and SMS feature. Instant messengers on smartphones require the user to be logged on using a unique username and a password. Once logged in to the messenger using a registered username and password, the user can communicate via text, audio or video with anyone who is added to their contact list and is logged on to the messenger at that instant. An email client allows a logged in user to send or receive emails on the smartphone
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