This is nothing short of a long read but worth every moment:
Hackers used a bunch of tricks to gain full control of Mat's accounts. From there they remote wiped his MacBook, iPad, and iPhone via iCloud.
Ultimately, their goal was his Twitter account which they did indeed manage to gain control of.
Please do read this article. It is food for thought.
Microsoft Small Business Specialists
Co-Author: SBS 2008 Blueprint Book