172 The Information Company
Note: Beginning in December, 2017, some Apple devices started using a new secure
enclave interface to their integrated SSDs, which has created challenges for forensic
examiners. The core of the secure enclave interface is the T2 chip, which sits between
the internal memory devices and anything that needs access to that memory. When
provided with the proper credentials using proprietary Apple interface commands, the T2
chip will unlock the encrypted data and make it available to the requestor. However,
without the proper credentials or without a mechanism to provide the proper credentials
to the Apple device, the exposed memory will be encrypted. As of this writing, Tableau
devices do not support the special mechanisms to expose Apple memory devices
protected by a T2 chip, nor a way of providing credentials to enable acquisition of the
unencrypted data. The Tableau development team is actively pursuing support for this
scenario, and a future update that provides such support will be announced as soon as it
is available.
5.4.1 USB-C to USB-A adapter cable
Newer Apple computers have a USB-C connector that can communicate via either USB
or Thunderbolt protocols. The Apple system will detect the type of connection and
automatically adjust how it communicates with the device. A USB-C to USB-A style
interface cable capable of USB 3.0 or USB 3.1 Gen 1 speeds (5 Gbps) will allow
connection between the Mac computer and the TX1 USB source port. These adapter
cables are widely available from a variety of commercial retailers, including Apple. A
USB-C to USB-A adapter cable is shown below.
5.4.2 FireWire adapter cable
TX1 has a source side FireWire 800 port, making acquisition of a Macintosh computer via
its FireWire connection as easy as plugging in an interface cable. Different Macintosh
computers have different FireWire connectors, so check the connector type before you
begin. FireWire 800 connectors are common on many legacy Mac systems. A FireWire
800 9-pin to 9-pin cable is shown below.
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