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Note: the host Mac will need to have either a USB 3.0 port, USB-C port, Thunderbolt 2 port, or Thunderbolt 3 port to be compatible with Target Disk Mode for the newer Macs. Attach the source Mac while in Target Disk Mode to a host Mac that can be booted to Digital Collector and perform the Data Collection using the host Mac. If the Secure Boot setting does not allow booting to external media or you are acquiring the latest MacBook Pro, then place the Mac in Target Disk Mode.

Mac target disk mode usb c password#

Note- if FileVault 2 is enabled, the password or recovery key will need to be entered to decrypt the additional encryption before collecting the data.

If the Secure Boot setting allows booting to external media, then boot to Digital Collector and logically collect the decrypted data.

We recommend formatting the drive/image as APFS or HFS+ to preserve the most metadata.

While the Mac is running live, the data is in a decrypted state and can be collected to a folder on the destination drive, sparse image, or DMG.

A Digital Collector user can conduct a Data Collection in the following states: This requires the examiner to unlock FileVault 2 first, using original hardware, in order for its T2 chip to decrypt the data.ĭon’t worry, we’ve got you covered! Cellebrite Digital Collector 2018 R1 and newer supports logical Data Collections of Mac computers with the Apple T2 chip. In addition to the physical disk being encrypted by default, a user can opt to add another level of protection by turning on FileVault 2 encryption. At this time, this forces examiners to conduct logical acquisitions of Macs with Apple T2 chip while the data is in a decrypted state. Since the data from a physical image is outside of its original hardware, the built-in encryption from the T2 chip cannot be decrypted. A physical image of the SSD from a Mac with a T2 chip has encryption that is different than FileVault 2 encryption. Apple explains more here.įor forensic examiners, this means the T2 chip from the original hardware is needed to decrypt the data, which impacts examining a physical image.

Mac target disk mode usb c software#

Mac hardware that has the Apple T2 chip integrates security into both software and hardware to provide encrypted-storage capabilities. Note- as Target Disk Mode is not write-protected, we recommend booting the host Mac to Cellebrite Digital Collector or using SoftBlock (write-blocking software) so that the source Mac is attached as read-only.

Place the source Mac into Target Disk Mode and attach it to another Mac (host), then conduct a logical Data Collection.

Conduct a logical Data Collection while the source Mac is running live and logged into a user account.

If the admin password is unknown, the examiner is limited to:

Instructions can be found on Apple’s site here and here. Switching these settings requires using the Startup Security Utility and entering an admin account password. This means in order to boot an external device such as Digital Collector or another imaging tool, the Secure Boot setting must be switched to “Allow booting from external media” and “No Security”. By default, Mac hardware with T2 chip is shipped from Apple with the “Full Security” Secure Boot setting and disallows booting from external media. With the introduction of the T2 chip, Apple added the Secure Boot feature, ensuring only a legitimate and trusted operating system can load at startup. This Apple Support page provides the list of Macs with Apple T2 chip.Īfter conducting tests with the new hardware, we discovered two primary issues that can impact a forensic examination, the Secure Boot feature, and built-in SSD encryption.

Mac target disk mode usb c pro#

Many examiners are asking “How does the T2 chip impact examining data from this new hardware?”Īt the time of this article, the T2 chip is included in the iMac Pro and most 2018 MacBook Pro models. Apple grabbed the attention of forensic examiners everywhere when they released hardware with new T2 chip technology in December 2017.