Due to the quantum leap in functionality, the
rate of upgrading traditional mobile phones to
smartphones is tremendous. One of the most
attractive features of smartphones is the availability
of a large number of apps for users to
download and install. However, it also means
hackers can easily distribute malware to smartphones,
launching various attacks. This issue
should be addressed by both preventive
approaches and effective detection techniques.
This article first discusses why smartphones are
vulnerable to security attacks. Then it presents
malicious behavior and threats of malware. Next,
it reviews the existing malware prevention and
detection techniques. Besides more research in
these directions, it points out efforts from app
developers, app store administrators, and users,
who are also required to defend against such
malware.