Sorry but this doesn't cover all the possible ways. My company is rolling out something called MobileIron, it is a software that allows them to read text messages as well as anything else on the phone. Whats funny is that they want to install it on my personal phone( they took over the contract). I am trying to fight it.
MobileIron
doesn't list eavesdropping on text messages as a feature. Though it does permit things like regulating what apps can be installed and enforcement of specific policies. If anything, it looks like the same thing you can do on MS Exchange, or even through the iPhone configuration utility... only they're paying someone else extra cash to do be able to it. Basically, your employer is getting duped into a service they could probably deploy on their own with the software they already have available to them. Someone in your IT department is lazy.
Furthermore, a little Googling brought up
this policy document from a company that's deployed MobileIron, and it states pretty clearly what it can and can't do:
"...we can see your security settings, phone serial number, jail broken status and the list of applications on your phone. We cannot see any of your personal files or data for your applications. This means we cannot see your pictures, music, files, personal contacts, notes in your notepad, etc. In addition, we cannot read your personal emails or any text messages you send."
One thing to be concerned about though: MobileIron CAN be used to track your phone's location... and by extension,
your location. But, the app follows the same rules all other iOS apps: you can disable location tracking for MobileIron in Settings.
In any case, it still falls under "they have to install something on your phone." They're going to have to physically take your phone and install MobileIron on there before they can start any monitoring.
Also: you probably shouldn't have let them take over your account. If they're paying the bills, they have a lot of leverage on what they do, and if the phone is subsidized under that contract, then the ownership of the device is now in doubt, too. Your company might think that your phone is theirs now.