Android Botnet? No, a Much Simpler Flaw in Yahoo! Mail's App
Lookout has discovered that Yahoo! Mail's Android app- the center of a potential "Android botnet" investigation-doesn't encrypt data in transit, warning hackers could hijack a user's account.
Yahoo Mail bugs may be behind Android 'botnet' spam, says researcher
Android botnet claim in dispute
Android Botnet Seen Spewing Spam