92 Chapter4·OverviewofMobileMalwareFamilies Frequently Asked Questions Q: Are any MM reported in this chapter still a threat? A: Yes and no. Most of these never went into the wild; the ones that did may still be roaming around and can infect mobile devices not equipped with antivirus software. If you harden your device against attack, such as setting Bluetooth to "hidden" and not discoverable, the chance of infection is negligible. Q: Why are there so many variants of these families? A: This may be due to a few reasons. Source code made available to the public allowed other MM authors to create new and better variations. Script kiddies can perform hex edits to the executable files, creating variations with minor changes. Some MM carry other files with them. These files can be readily changed since the filenames are not hardwired into the MM code. Q: Should we expect future MM families to contain as many or more variants as Skuller? A: Absolutely! It's a given that future MM will leak source code out and script kiddies will