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Read-only access to MTP devices?

Hi,

We are currently implementing Sophos device control on our network, including blocking access to USB storage devices.

Our employees use Android mobiles (Galaxy A3's) which many of them connect to their PC's via USB in order to transfer photos (only from phone to PC, not the other way).

However, looking at the device control policy for MTP/PTP devices, the only options are Blocked, or Full Access. Is there any way to allow just read-only access to these devices?

thanks

Dan

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0 QC over 4 years ago

Hello Dan,

MTP/PTP is a communication protocol, devices don't appear as storage devices. You can't restrict access to read-only.
Are you worried that users might transfer potentially sensitive files to their mobiles?

Christian
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0 Dan Petford over 4 years ago in reply to QC

Hi Christian,

My name is Dan Petford and I work with my colleague Dan Wills who posted the original question.

I have since found out that you can Exempt a device as 'Read-only' which allows you to access the photos on the Mobile Phone, however I can still copy items to the phone.

Is there any way around this?

Kind regards, Dan
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0 QC over 4 years ago in reply to Dan Petford

Hello Dan the other,

that you can Exempt a device as 'Read-only'
you can't, this is a GUI issue and the setting permits Full Access. According to the article first seen for SEC 5.2.1, no Fix Version in the Known Issues List - don't ask me why.

As said, it can't be done.

Christian
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0 QC over 4 years ago in reply to Dan Petford

Hello Dan the other,

that you can Exempt a device as 'Read-only'
you can't, this is a GUI issue and the setting permits Full Access. According to the article first seen for SEC 5.2.1, no Fix Version in the Known Issues List - don't ask me why.

As said, it can't be done.

Christian
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