Here's the latest of our malware wallpaper calendars.
This month marks the anniversary of the appearance of Cabir, the first malware for mobile phones. This worm - a proof-of-concept worm created by 'Vallez', a member of the virus writing group 29A - was designed to infect devices running the Symbian operating system and to spread using Bluetooth.
Mobile malware has come a long way since then.
On top of this, the use of smartphones has increased massively. And we're all doing so much more with them - at home, at work, or both. As a result, they hold so much more confidential data; and the risk of data leakage from lost or stolen handsets is far greater than at any time in the past.
We all need to be very clear: that's a computer in our pockets or bags - not just a telephone!