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How To: Crack Shadow Hashes After Getting Root on a Linux System

After gaining access to a root account, the next order of business is using that power to do something more significant. If the user passwords on the system can be obtained and cracked, an attacker can use them to pivot to other machines if the login is the same across systems. There are two tried-and-true password cracking tools that can accomplish this: John the Ripper and Hashcat.

How To: 33 Cool Little Android Features You Might Not Know About

One of Android's biggest strengths is its flexibility. There's usually more than one way to perform the same task, which makes it easy to find an alternate method that works better for you. Android also has some hidden features that newer users might not be aware of, so we made this list to highlight lesser-known tips and tricks.

Dev Report: Some Light Shed on Magic Leap's Persistent Object Locations Solution but Many Mysteries Remain

With the reveal of Magic Leap's developer documentation last week, many questions have been answered—and several new ones have been raised as well. But since the Magic Leap One (ML1) isn't simply called the "Leap One," these are questions that the company probably has no interest (at least for now) in answering. Understandably, Magic Leap wants to keep some of the "magic" under wraps.

News: The Galaxy S9 Is IP68 Water-Resistant — Here's What That Really Means

The day has finally arrived — Samsung has unveiled the Galaxy S9 and S9+. Apart from minor upgrades, the two might not appear to be much different from last year's S8 and S8+, but that's not necessarily a bad thing. One feature that hasn't changed is the Galaxy's IP68 water-resistance rating. That's a great score, but it begs the question — what does that number really mean?

How To: Use Keyboard Shortcuts to Type Out Emoticons Faster on Your iPhone

Sure, emojis are all the rage, but there's not an emoji for every emotion or feeling just yet. That's where emoticons come into play, emoji's older typographical sibling. Unfortunately, emoticons can be hard to type out, easy to forget, and ASCII art, in general, can be pretty time-consuming to create from scratch — but there's an easy way to forgo all these issues — make keyboard shortcuts.

Snapchat 101: How to Use Your Selfies to Create a Bitmoji Deluxe

Accompanying Snapchat's core features, like editing snaps and applying filters to them, is Bitmojis. These are small avatars that you create in your own likeness and use all throughout Snapchat. Formerly, there were two "styles" that you could pick from to make your Bitmoji: Bitstrips style and Bitmoji style. But Snapchat has a third style now that will redefine the way you use Bitmojis.

How To: Find Anyone's Private Phone Number Using Facebook

Facebook really wants your phone number, nagging you for one as soon as you join. This isn't all bad since it can help secure your account with two-factor authentication. On the flipside, this makes it easy to reveal the private phone numbers of virtually anyone on Facebook, including celebrities and politicians. We're going to look at how a hacker would do this and how to protect yourself.

News: Mastercard, Qualcomm-Powered ODG Smartglasses Use Iris Authentication for AR Shopping

As the level of data being generated grows exponentially, past the Information Age and into the coming Hyper-Information Age of immersive computing — as resistant as many of us are to the idea — personal data security is becoming a necessary consideration in our everyday lives. Recognizing this, Mastercard, Qualcomm, and Osterhout Design Group have teamed up to show what secure shopping could look like in the very near future with iris authentication.

News: This Genetic Defect Could Be Why Typhoid Mary Never Got Typhoid Fever

Whether or not a microbe is successful at establishing an infection depends both on the microbe and the host. Scientists from Duke found that a single DNA change can allow Salmonella typhi, the bacteria that causes typhoid fever, to invade cells. That single genetic variation increased the amount of cholesterol on cell membranes that Salmonella and other bacteria use as a docking station to attach to a cell to invade it. They also found that common cholesterol-lowering drugs protected zebrafi...

How To: Create a Strong (Or Stronger) Passcode for Your iPhone

When you first set up an iPhone, you'll be prompted to create a six-digit passcode to unlock your screen and access certain system settings. If you skip this step, you can always go back and create one, which we highly recommend. Without a passcode, everything on your iPhone is accessible by anyone who gets their hands on it — nosey friends, hackers, thieves, local law enforcement, the FBI — and you don't want that, do you?

How To: Make ADB & Fastboot Work in Any Folder on Windows

Unless you're experienced using the Linux terminal, running ADB and Fastboot commands can get confusing very fast. The problems often stem from having to hunt for various files — usually IMG or ZIP files that you need to mod your Android phone — and then move them to your platform-tools folder, which, depending on how you installed ADB in the first place, could be anywhere.

How To: 3 Great Apps for Reverse Phone Number Lookup on Android

As much as you try to safeguard your personal information, you may have made a small mistake by giving your phone number to the wrong entity, and now you're being bombarded with dozens of spam calls every day. To help parse your call log and reject the proper numbers without answering or trudging through voicemail, a good reverse phone lookup app is needed.

News: Step Aside Penicillin — A Deep Dive into Fungus Genes Reveals Over 1,300 Potential Antibiotics Waiting to Be Discovered

On October 17, 1943, a story in the New York Herald Tribune read "Many laymen — husbands, wives, parents, brothers, sisters, friends — beg Dr. Keefer for penicillin," according to the American Chemical Society. Dr. Chester Keefer of Boston was responsible for rationing the new miracle drug, penicillin.

How To: Install Android O on Your Pixel or Nexus Right Now

Android O has finally arrived—well, it's technically a beta version, but that isn't stopping Android enthusiasts from going crazy about it. The first Developer Preview was released earlier today and is available right now to install on Nexus and Pixel devices. While Android O doesn't have an official name or Android number yet (we're betting on "Android Oreo"), Google has released a feature list and a blog post explaining almost all of the new changes and features.

News: A Human Has Caught the Bird Flu... From a Cat!

Cats give us so much—companionship, loyalty, love... and now the bird flu. Several weeks ago, a veterinarian from the Animal Care Centers of New York City's Manhattan shelter caught H7N2 from a sick cat. According to a press release from the NYC Health Department on December 22, "The illness was mild, short-lived, and has resolved." This isn't the first time cats have passed infections on to humans, but it is the first time they passed on the bird flu—avian flu H7N2, to be exact.

HoloToolkit: How to Add Voice Commands to Your HoloLens App

The HoloToolkit offers a great many, simple ways to add what seems like extremely complex features of the HoloLens, but it can be a bit tricky if you're new to Windows Holographic. So this will be the first in an ongoing series designed to help new developers understand what exactly we can do with the HoloLens, and we'll start with voice commands.