Stolen Library Mac
Until earlier this week, Apple's FileVault 2 disk encryption could be defeated in the time it takes to reboot a Mac, given a few hundred dollars in hardware and physical access to the computer.
Macで「Library（ライブラリ）」フォルダを表示させる方法 2015.05.26 特定のアプリケーションのキャッシュを消したい時などぐらいかもしれないが、Macを使っているとたまに 「Library（ライブラリ）」フォルダにアクセスしなければならない時 がある。. Without Find My Mac turned on via your iCloud account, you are going to have to rely on the kindness of strangers or local law enforcement to get it back. Edit: And my experience with a stolen computer was that even having Find My Mac enabled didn't help me get the computer back. Jul 09, 2018 To view another Mac user account’s logs located under “User Reports” or “/Library/Logs,” you’ll have to sign in as that user and then open the Console app. You can copy data from your system logs to a text file, if you need to export it to share it with someone else for troubleshooting purposes.
Apple on its website claims that FileVault 2 uses 'XTS-AES-128 encryption with a 256-bit key to help prevent unauthorized access to the information on your startup disk.'
However, Ulf Frisk, a security researcher based in Sweden, found that he could plug an assembled device running software called PCILeech into a Mac and obtain the FileVault 2 encryption password using a direct memory access (DMA) attack during the reboot process.
Apple's flawed encryption scheme, fixed in the Tuesday release of the macOS 10.12.2 update, lacked protection from DMA attacks launched prior to the the loading of macOS.
Dec 12, 2019 With Find My, you can locate and protect your Mac if it's ever lost or stolen. You need to set up Find My Mac before it goes missing. To turn it on, simply choose Apple menu System Preferences, click Apple ID, then click iCloud. If you believe that your Mac was stolen, contact your local law enforcement. We will check against stolen ' Mac Calls Home ' database as well as few other associates databases, so it may take up-to 60 seconds to check. ' Mac Calls Home ' is very powerful tool to protect your Mac against theft. It is very easy to install and it requires no maintenance at all. Total messages: 67.
When running its Extensible Firmware Interface (EFI) during the early stages of the boot process, Mac hardware allowed devices connected by Thunderbolt 2 (USB-C has not been tested) to read and write memory in the Mac.
The ability to write to memory alone allows an attacker to subvert a system. But creating an exploit by overwriting memory wasn't necessary because FileVault passwords were stored in cleartext and were not evicted from memory once the disk was unlocked.
Obtaining the disk password was simply a matter of connecting the PCILeech device to a Mac and rebooting it, Frisk explains.
'Once the Mac is rebooted, the DMA protections that macOS previously enabled are dropped,' said Frisk in a blog post on Thursday. 'The memory contents, including the password, [are] still there though. There is a time window of a few seconds before the memory containing the password is overwritten with new content.'
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Frisk discovered the vulnerability in July and presented details in August at Def Con 24. The presentation also described attacks on Linux and Window systems.
Jan 20, 2020 How to Change iTunes Library Location on Mac Changing the iTunes files location on a Mac is pretty easy as you can do the task from within the iTunes app on your machine. You just need to modify an option in the settings and your task will be done. How to Export iTunes Library to iPhone within Seconds? Step 1: Open iMyFone TunesMate on your computer and connect your phone to your computer using a USB cable. Step 2: On the Home screen, click on Transfer iTunes Media to iDevice tab. It will scan the entire iTunes library and show them in a. Mar 24, 2019 Open iTunes app Look near the top of the iTunes window and click on the ‘Library’ button (sometimes this is labeled as “My Music”) This will switch iTunes to. Itunes. Jan 04, 2020 When you install and set up iTunes for the first time, the software automatically chooses a location to house your library. By default, that location is C:usersusername MusiciTunes.
Apple was subsequently notified and requested that Frisk delay public disclosure until it could deal with the issue, which it has done through its software update.
Frisk says it is no longer possible to access memory prior to the boot process on an updated Mac, making it one of the most secure platforms against this specific type of attack, at least with regard to publicly disclosed vulnerabilities. Mac photos updated library and now my pictures are gone. ®
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Follow these steps to use the Photos library repair tool:
- Hold down the Option and Command keys while you open Photos on your Mac.
- In the dialog that appears, click Repair to start the repair process.
You might be asked to type in your user account password to authorize the library repair.
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The repair tool analyzes the the library's database and repairs any inconsistencies it detects. Depending on the size of your library, this might take some time. When the process is completed, Photos opens the library.
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If you repair a library that's automatically updated with iCloud Photos, the entire contents of the library re-updates with iCloud after the repair process completes.