1. dpeters11's Avatar
    This I know goes back quite a bit, but hoping someone knows.

    I know when the 3GS first came out, iOS didn't support encryption, which was added in iOS 4. I believe that if you upgraded from iOS 3 to 4, then it did not encrypt unless you restored back to the device.

    My question is that was this changed at some point with a more recent update, or if not is it possible to see if encryption is enabled?

    This comes up because we have a new mobile device policy requiring encryption and we still have a few users with 3GS's. I believe most are current, on iOS 6 but I don't know if all of them have had to be restored over time (or if they were purchased with iOS 4+ preinstalled.)
    05-22-2015 09:30 AM
  2. Ledsteplin's Avatar
    05-22-2015 11:34 AM
  3. dpeters11's Avatar
    Ok. I thought I had seen things that said that a 3GS on iOS 3 that was upgraded to 4 didn't get encrypted. I'll see if I can spot check a few, looks like I can look for the Data protection is enabled text.

    I found this that mentions this loophole and the determination:
    Daily Tip: How to enable data protection on your iPhone, iPad | iMore
    05-22-2015 11:46 AM
  4. Ledsteplin's Avatar
    Ok. I thought I had seen things that said that a 3GS on iOS 3 that was upgraded to 4 didn't get encrypted. I'll see if I can spot check a few, looks like I can look for the Data protection is enabled text.

    I found this that mentions this loophole and the determination:
    Daily Tip: How to enable data protection on your iPhone, iPad | iMore
    Are you using a 3gs?
    05-22-2015 11:57 AM
  5. dpeters11's Avatar
    I don't have an iPhone myself. Others in the company do, I'll need to look some of them up and see if they are encrypted or not as I don't think I can assume. My main reason for asking the question was to see if the loophole between ios 3 to 4 was changed in 5 or 6 where upgrading to those higher versions encrypted automatically or still required a restore.
    05-22-2015 01:51 PM
  6. Ledsteplin's Avatar
    I don't have an iPhone myself. Others in the company do, I'll need to look some of them up and see if they are encrypted or not as I don't think I can assume. My main reason for asking the question was to see if the loophole between ios 3 to 4 was changed in 5 or 6 where upgrading to those higher versions encrypted automatically or still required a restore.
    Very few still use the 3gs. Not that many use the 4. If your coworkers are on iOS 8, they should be ok. It's at iOS 8.3.
    05-22-2015 03:04 PM
  7. dpeters11's Avatar
    Agreed, but I know for a fact some here are still on the 3GS, though I think it's certainly a small number. I'm waiting on a new report from the Exchange admin to look up the specific users.
    05-22-2015 03:14 PM
  8. Ledsteplin's Avatar
    Agreed, but I know for a fact some here are still on the 3GS, though I think it's certainly a small number. I'm waiting on a new report from the Exchange admin to look up the specific users.
    If any are on a 3GS, they should upgrade. There's hardly any apps left that work on it. Some here do have one. But it's mostly a collection thing. They need at least the iPhone 4s to have all the encryption.
    05-22-2015 04:48 PM

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