Infected Android apps can hijack your texts.

"At least 11 Android apps contain malware that is rigged to automatically send text messages from your Google Android smartphone to phone numbers in China.

The apps, which include iBook, iCartoon, iGuide, iCalendar, LoveBaby and Sea Ball, are embedded with malicious code that covertly sends text messages to three different premium-rate numbers without their knowledge or approval.

The texts then sign the victims up for paid subscription services, according to AegisLab, the Taiwanese security firm that discovered the corrupt apps."