Security is a very complicated issue, especially when it comes to platforms that are still changing as fast as they are in the mobile space. The general consensus is that Android is the least secure of the mobile options, although the reasoning there doesn't always hold very well. Google has been on a bit of a mission recently to regain control of the security narrative, and today Google's Eric Schmidt even went so far as to say that Android is "more secure than the iPhone"...Source: http://www.phonearena.com/news/Eric-Schmidt-says-Android-is-more-secure-than-the-iPhone_id48062
