Mobile Operating System Security A PRESE N TA

Mobile Operating System Security A PRESE N TA TION BY DANIEL ADAMS CSC 345 DR. B OX

A brief history Palm OS ◦ First mobile operating system ◦ Released in 1996 ◦ Lacked a file system Windows CE ◦ Windows for embedded systems ◦ Also released in 1996 Symbian OS ◦ Released on Ericsson R 380 in 1999 ◦ First modern OS on a smartphone

A brief history Black. Berry ◦ Released first smartphone in 2002 ◦ Many business productivity applications i. OS ◦ Released in 2007 ◦ Marketed as an “Internet communicator” Android ◦ Version 1. 0 released on HTC Dream in 2008 ◦ Free and open source, developed by Google

Why should I worry about protecting my device? o. Loss of services o. Loss of data o. Compromise of privacy o. Potential fraudulent charges

Types of threats Denial of service ◦ Unable to access resources ◦ Caused by bugs or attacks Malware ◦ Not as prevalent on mobile devices as computers ◦ Can include ◦ ◦ Viruses Worms Trojans Rootkits

Safeguards Malware prevention ◦ i. OS: Apple must approve apps put on app store ◦ Android: Google scans apps put on store and on phone ◦ Windows Phone: Microsoft must approve apps put on app store Malware removal ◦ Multitude of antimalware Android apps in app store Secure Boot ◦ Uses known cryptographic signatures during boot to detect tampering by a rootkit

Safeguards SELinux ◦ Security Enhanced Linux ◦ Used by Android to control access to rescources File Permissions ◦ Prevent processes from accessing whatever file they want ◦ Can stop malware from accessing critical OS files Memory Protection ◦ Prevents processes from gaining higher privledges

Safeguards Authentication ◦ PIN, passcode, pattern, facial recognition ◦ Thin layer of protection against theft Device encryption ◦ Renders data on phone unreadable without key ◦ Virtually impossible to crack