Have you ever wanted to show a list of the entire download history of a Mac? Maybe you know you downloaded a file but you can’t quite pinpoint where you got it from and the “Get Info” trick didn’t work. Or maybe you are trying to track down a file that has been placed on … Read More
Do you need to check the sha1 hash of a string? You can easily find the sha1 hash of any string from the command line, and this trick works to check sha1 hash from Mac OS or Linux. We’ll use the openssl command to
If you have an iPhone, iPad, or iPod, you can remotely wipe the device with the help of an excellent free service offered through iCloud called “Find My iPhone” (or Find My iPad, etc). This is perfect for situations where a lost device is long gone with no chance of recovery, because it erases anything … Read More
If you’ve ever wished you could check up on your house while you’re away, wish no more because we have a simple solution. We are going to configure a Mac as a home security camera that will open a live video stream on demand which can be watched remotely from anywhere via an iPhone, iPad, … Read More
Apple has released a standalone removal tool that targets Flashback malware infections. The separate utility is recommended for Mac users who do not have Java installed on their OS X Lion machine, but it’s functionality is identical to that performed by the most recent Java update to remove Flashback. If your Mac does not have … Read More
Apple has released a new Java security update that automatically removes the most frequently occurring variations of the Flashback trojan malware. The software update is recommended for all Mac users to install, even if they have previously checked their systems for infection. To get the update and remove any malware that is potentially on a … Read More
Update: Apple has released an official update that removes Flashback with a Software Update. Download the latest Java updates from the OS X Software Update panel to automatically remove Flashback trojan malware. A new application has been released which makes checking a Mac for the Flashback malware infection as simple as clicking a button. This … Read More
The recent outbreak of the Flashback trojan (Apple released an update and fix, get it!) has brought a lot of attention to potential viruses and trojans hitting the Mac platform. Most of what you’ll read is overblown fear mongering hype, and practically all Mac malware has come through third party utilities and applications. What that … Read More
Update: Apple has released a Java software update that includes automatic detection and Flashback removal ability. Go to “Software Update” from the Apple menu to download that update and automatically remove the trojan if you happen to have it on your Mac. Trojans and viruses are generally something Mac users don’t have to worry … Read More
With the help of a buried menu item, we can lock the Mac OS X screen right from the Terminal. This does not log a user out, it just brings up the standard Mac OS X lock screen and login window, requiring a valid user and password before the Mac can be used again. This … Read More
Although everyone should always password protect a Mac to prevent unauthorized use, not everyone does. Sometimes people share general logins, be it with a roommate, sibling, spouse or whoever else. Now, if you have ever wondered if someone was using your computer while you were away, there’s actually a pretty easy method to find out … Read More
SHA hashing is frequently used with distribution control systems to determine revisions and to check data integrity by detecting file corruption or tampering. For common usage, a SHA checksum provides a string that can be used to verify a file been transferred as intended. If SHA checksums match, the files integrity has been maintained. This … Read More
If you need to delete sensitive information and have it completely inaccessible, you’ll want to use the “Secure Empty Trash” feature. This works by writing random patterns of data over a trashed file immediately after it has been emptied, or removed from the filesystem, such a process which otherwise takes place over time throughout normal … Read More
Need to quickly encrypt a file from the command line? With OpenSSL, you can encrypt and decrypt files very easily. For the purpose of this walkthrough, we’ll use des3 encryption, which in simple terms means a complex encryption algorithm is applied three times to each data block, making it difficult to crack through brute force … Read More
You can password protect files and folders in Mac OS X by using a trick with disk images. Here’s how it works; by placing files inside of an encrypted disk image, that disk image will work like a password protected folder and require a password before it’s mounted, preventing unauthorized access to all of the … Read More
The root user is a special user account with high level system-wide access privileges intended for system administration, monitoring, and in depth troubleshooting purposes. By default, root user is disabled in Mac OS X for security purposes, but if you need to enable superuser, this guide will show you how to do so in OS … Read More
Creating a password protected zip file is easy in Mac OS X and does not require any add-ons or downloads. Instead, use the zip utility that is bundled with all Macs. This offers a simple way to protect a zip archive file from unwanted viewing access, as when a user attempts to decompress the contents … Read More
Need to hide a folder or two on a Mac? A while back we showed you how to make invisible folders and to even how to make hidden folders in Mac OS X, but now we’re going to demonstrate how to turn an existing folder into a hidden folder.
