iOS, Android and Windows logos to determine which Mobile OS is most secure

Which Mobile OS is Most Secure; iOS, Android, or Windows? [SLIDESHARE]

With the growing popularity of Bring Your Own Device (BYOD) and similar company-wide policies integrating mobile devices into the work day, a question arises about security. Often times, these devices are collecting confidential and sometimes sensitive information, especially when the data being collected involves compliance and regulatory measures.