A security rucksack for Android

To start the year, I share a non-comprehensive list of security (or just handy) related Android apps that could constitute a sensible set of preventive security measures during our daily smartphone use & enjoyment:

To check what it is going on...
- Task Manager
- Network Monitor
- Antivirus (one of the handful of them)
- DroidWall 
- Virus Total
- Advanced Task Killer
- OS Monitor
- Startup Auditor

- X Ray
 
To prevent leaks...

- LBE Privacy Guard

To prevent losses...
- Titanium Backup

To save space...
- App2SD

To save energy...
- Juice Defender

To find files... 
- ES File Explorer

To avoid adds...
- AdAway

To find the device...
- Androidlost

A useful security suite (AV, antimalware, device locator - requiring GPS - and backup)
- Lookout

And to make space (sooner or later you'll need it)
- DiskUsage 

Thanks to all those who contributed to build this list.
Would you add other security apps to this list? Let me know.

Happy phoning!

Keeping information where it should remain