Google has been hit by three different waves of malware this year. Why is Android a popular target? A big part of the problem is that Google doesn't control what apps can be installed in an Android device like Apple does. In a blog post, Juniper isn't shy about laying the blame at the foot of Google:
These days, it seems all you need is a developer account, that is relatively easy to anonymize, pay $25 and you can post your applications. With no upfront review process, no one checking to see that your application does what it says ... Sure, your application can be removed after the fact ... But, how many unsuspecting people are going to download it before it is identified as malicious and removed? This is precisely what is playing out in the mind of mobile malware developers today.
These Android topics by Michael Kassner: