Through the use of iExplorer, a tool that allows for users to transfer music, movies and etc. between iOS devices, it was discovered that anyone with access to your phone can easily access content from Mailbox, your contacts and even your attachments! Behera stated that since the iOS SDK provides developers with tools to help protect data, he is surprised that Mailbox does not use it. We’re not sure if this was intentional or if it was simply overlooked, but hopefully Mailbox will address this issue soon.
For the average Joe, this might not be a big deal especially if they don’t keep sensitive information in their emails, but for business users or government users, the ease to gain access to potentially sensitive information could be a huge problem.