Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Forensic Analysis of WhatsApp Messenger on Android Smartphones   We present the forensic analysis of the artifacts left on Android devices by
\textit{WhatsApp Messenger}, the client of the WhatsApp instant messaging
system. We provide a complete description of all the artifacts generated by
WhatsApp Messenger, we discuss the decoding and the interpretation of each one
of them, and we show how they can be correlated together to infer various types
of information that cannot be obtained by considering each one of them in
isolation.
  By using the results discussed in this paper, an analyst will be able to
reconstruct the list of contacts and the chronology of the messages that have
been exchanged by users. Furthermore, thanks to the correlation of multiple
artifacts, (s)he will be able to infer information like when a specific contact
has been added, to recover deleted contacts and their time of deletion, to
determine which messages have been deleted, when these messages have been
exchanged, and the users that exchanged them.

16
The categories of this paper are: stat
19
The categories of this paper are: eess
2
The categories of this paper are: math
13
The categories of this paper are: quant-ph
36
The categories of this paper are: cmp-lg
12
The categories of this paper are: nucl-th
30
The categories of this paper are: q-alg
34
The categories of this paper are: chem-ph
37
The categories of this paper are: supr-con
22
The categories of this paper are: chao-dyn
33
The categories of this paper are: plasm-ph
23
The categories of this paper are: solv-int
17
The categories of this paper are: q-fin
32
The categories of this paper are: atom-ph
31
The categories of this paper are: ao-sci
27
The categories of this paper are: comp-gas