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HFS+ A file system that was developed by Apple. Having an OS is essential to operate a computer, as applications utilize the OS to function.

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This entails input and output, Mac OS X Forensic Artifact Locations of 36Д¤ memory allocation, file management, task scheduling, etc. What new artifacts are available with the new features of OS X El Capitan? Terminology: Operating System A suite of programs that controls signals to and from input devices (such as a mouse, keyboard, microphone), peripherals (hard disks, CD/DVD drives, printers, etc.), output devices (monitors, speakers, etc.) and performs the basic functions needed for a computer to operate.

What artifacts have changed within OS X El Capitan a. What are the default locations for artifacts in both OS X Yosemite and OS X El Capitan? 3. What new artifacts can we find that were unable to be located last time the LCDI conducted research with OS X Yosemite? 2. It will be a valid resource for those new to OS X, as well as those with experience.

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OS X is, at its core, a custom version of Unix, while Windows is built on Windows NT. This is valuable, as OS X works differently than Windows. It will also detail the new locations that artifacts have been found in. This report will compare the default locations of artifacts between OS X Yosemite and OS X El Capitan. This will be beneficial because it will outline where artifacts are located in the file system, allowing investigators to quickly locate them rather than conduct a lengthy search. Purpose and Scope: This report will support digital forensic law enforcement personnel, students, and investigators alike, serving as a guide to the default locations of forensic artifacts in both OS X Yosemite and El Capitan. Both resources helped us determine which artifacts to create in data generation and where to start looking once our data generation was completed. In our research we referenced a similar existing document, OS X Lion Artifacts, created by Sean Cavanaugh and published through the website Apple Examiner. Background: Last year the LCDI analyzed and created a list of artifact locations within OS X Yosemite.

We were also tasked with comparing the two operating systems and creating a detailed list to be used as a resource for investigators. The goal of our research was to determine the default locations for artifacts in the newest releases of OS X, including new artifacts introduced with El Capitan. Mac computers use the HFS+ filesystem, which has slightly less storage space and functions differently from NTFS, the file system used in Windows computers.

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OS X operates differently from Windows operating systems and it is important to know how to perform an investigation on both machines. As they continue to grow in popularity, it will become more common for investigators to encounter these operating systems. As of 2015, Apple had a five year annual sales growth of 38%, ranking third in annual growth out of all Fortune 500 companies (Wieczner). El Capitan was released on September 30, Yosemite premiered on October 16, Apple is known to be innovative with their products, which is reflected in their sales.

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9 Appendix 2: OS X El Capitan Artifact Location Spreadsheet References Mac OS X Forensic Artifact Locations of 36ДЈ Introduction OS X has been the default operating system for Mac computers since 2001, with El Capitan and Yosemite serving as Apple s two most recent releases. 9 Appendix 1: OS X Yosemite Artifact Location Spreadsheet. Any redistribution must maintain the LCDI logo and any references from this report must be properly annotated. Information in this report can be downloaded and redistributed by any person or persons. However, LCDI nor any of our employees make no representation, warranty or guarantee in connection with this report and hereby expressly disclaims any liability or responsibility for loss or damage resulting from use of this data. Every effort has been made by LCDI to assure the accuracy and reliability of the data contained in this report. The data contained in this project is submitted voluntarily and is unaudited. 1 Mac OS X Forensic Artifact Locations Written and Researched by Michael Cook Jake Nicastro TJ Dalzell Michael Geyer Austin Truax 175 Lakeside Ave, Room 300A Phone: (802) Fax: (802) /10/2015Дў Disclaimer: This document contains information based on research that has been gathered by employee(s) of The Senator Patrick Leahy Center for Digital Investigation (LCDI).