Among the plethora of built-in OS X features that help keep your Mac secure is something called File Quarantine, a download validation technology that checks any downloads for known malware when you try to open them.
File Quarantine is also available in compatible applications like Safari, Messages, iChat and Mail that download files from the Internet or receive files from external sources, such as email attachments.
Additionally, OS X blocks compromised versions of web plug-ins from functioning, including Java web apps and Adobe Flash content, to further limit your Mac’s exposure to potential zero day exploits.
In this tutorial, we’ll discuss how you can make sure that File Quarantine updates are turned on, which will allow your Mac to receive latest malware definitions and information about compromised web plug-ins from Apple.
Should you ever find yourself in the need to create blank disk images, OS X’s built-in Disk Utility is your friend. A disk image usually has a .dmg extension and appears, looks and behaves like any ordinary file, with one key exception: launching it prompts OS X to mount the volume on the desktop.
These mountable disk images can be useful in a number of situations. For example, you may want to create blank disk images for storage.
Furthermore, disk images can be used as a virtual disk for software distribution, to burn CDs or DVDs and so forth. In this step-by-step tutorial, you’ll learn how to create blank disk images in Disk Utility, at any size, with optional password protection, formatting options and more.
This tutorial will guide you through the process of moving an entire library of photos to an external drive. Because of the sensitivity of the process, we will go over each step to ensure that you do not lose any photo during the transfer.
All Macs with OS X El Capitan installed on them have a new layer of security known as System Integrity Protection, which has been given the nickname ‘Rootless’ because it closes off a lot of system files to user access to prevent malicious programs and code from causing harmful changes to the core of OS X.
For some, the added security feels like a must for protection of your personal information, but for more advanced users who poke their noses into system files quite often, the feature can get in the way and prevent user modifications to the operating system. In this tutorial, we’ll give you an overview of System Integrity Protection and show you a way to disable it.