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How To: Use an ESP8266 Beacon Spammer to Track Smartphone Users

Smartphones and laptops are constantly sending Wi-Fi radio signals, and many of these signals can be used to track us. In this guide, we'll program a cheap IoT device in Arduino to create hundreds of fake networks with common names; This will cause nearby devices to reveal their real trackable MAC address, and it can even let an attacker take over the phone's data connection with no warning.

How To: The Best Socialization Apps on Your Phone for 18-Month-Olds

Your childhood "social networking" may have been to go outdoors to the neighbor's — and outdoors is a great place for kids to be. But these days, the terms educational, digital media, entertainment, and toddlers don't have to be mutually exclusive. Like most things in life, it's about balance, and these apps can aid your child with social-emotional development when not playing with friends.

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: Perform Local Privilege Escalation Using a Linux Kernel Exploit

Getting root is considered the Holy Grail in the world of Linux exploitation. Much like SYSTEM on Windows, the root account provides full administrative access to the operating system. Sometimes even a successful exploit will only give a low-level shell; In that case, a technique called privilege escalation can be used to gain access to more powerful accounts and completely own the system.

How To: Exploit Shellshock on a Web Server Using Metasploit

One of the most critical bugs to come out in the last five years was Shellshock, a vulnerability which allows attackers to execute arbitrary code via the Unix Bash shell remotely. This vulnerability has been around for a while now, but due to the ubiquity of Unix machines connected to the web, Shellshock is still a very real threat, especially for unpatched systems.

How To: Use Command Injection to Pop a Reverse Shell on a Web Server

Command injection is a technique used by hackers to execute system commands on a server, usually via a web application or some kind of GUI. This can happen when an application provides some sort of functionality to the user involving the use of system commands. When the input is not properly sanitized, commands not originally intended to be run are allowed to be executed.

News: iOS 12 Dev Beta 2 & Public Beta 1 Hit iPhones

Right on the heels of the iOS 11.4.1 beta 3 release, Apple pushed out iOS 12 beta 2 to registered developers on Tuesday, June 19. Public beta testers received the same version, labeled as iOS 12 public beta 1, six days later on Monday, June 25. Last year, the iOS 11 public beta opened up just five days after the release of iOS 11 developer beta 2, so iOS 12 is pretty much right on track in that regard.

Hacking macOS: How to Remotely Eavesdrop in Real Time Using Anyone's MacBook Microphone

Google, Amazon, and Facebook are always listening. But what's worse? Hackers are listening, too. Windows PCs are particularly vulnerable, but with a few simple commands, a remote attacker can even take over the microphone on someone's Mac computer, streaming audio and listening to private conversations in real time without the victim's knowledge, abusing an overlooked security consideration.

How To: 5 Ways to Improve the Bluetooth Experience on Your Samsung Galaxy

Many of us rely on our smartphones for all our media needs. Now more than ever, we're using Bluetooth connections to play audio over speakers, headphones, car sound systems — the list goes on. If you own a Samsung smartphone like the Galaxy S9, there are a number of Bluetooth tweaks and hidden tricks that can maximize your audio experience.

How To: Clean Up Android's Cluttered Share Menu

The share menu is a vital part of Android that lets you send data between between apps. Many of your favorite apps support the feature, including the new Direct Share sub-menu, which can lead to a messy share menu. However, there are a number of tools to clean up this clutter, three of which don't require root.

How To: Install & Lock Down Kali Linux for Safe Desktop Use

Kali Linux is established as the go-to operating system for penetration testing, but in its default configuration, it's less than ideal for regular desktop use. While in many scenarios, a live boot or virtual environment can resolve these issues, in some situations, a full installation is better. A few simple changes can be made to a Kali Linux desktop to make it safer to use in this environment.

How To: 24 Safari Privacy Settings You Need to Check on Your iPhone

Over the years, we've seen security breach after security breach, as well as high-profile data scandals where collected personal information was misused by companies. Apple makes customer privacy a priority, so there have been few issues to worry about when it comes to its services on your iPhone. However, there are still plenty of privacy settings to explore and change, especially within Safari.

Instagram 101: How to Create Polls to Get Questions Answered by Followers & Other Users

Whether it's for your company, your professional image, or just your personal account, making a poll on Instagram is a great way to reach out to followers, friends, family, and other users to measure their thoughts and opinions about any given topic. Instagram for Android and iOS makes it fun and simple to do so, offering the same tools to professional and personal users alike.

How To: Create Custom Wordlists for Password Cracking Using the Mentalist

Beginners learning brute-forcing attacks against WPA handshakes are often let down by the limitations of default wordlists like RockYou based on stolen passwords. The science of brute-forcing goes beyond using these default lists, allowing us to be more efficient by making customized wordlists. Using the Mentalist, we can generate millions of likely passwords based on details about the target.

How To: 7 Tips for Securing a Red iPhone 8 Before They Sell Out

Apple has introduced a special edition iPhone 8 and 8 Plus to bring attention to the ongoing worldwide battle against AIDS. As the second iPhones to carry the (PRODUCT)RED name, these rare iPhones may quickly sell out when preorders open up on Tuesday, April 10, at 5:30 a.m. (PDT), so we'll go over some tips to help you secure a red iPhone before it's gone.

ARCore 101: How to Create a Mobile AR Application in Unity, Part 1 (Setting Up the Software)

If you've contemplated what's possible with augmented reality on mobile devices, and your interest has been piqued enough to start building your own Android-based AR app, then this is a great place to to acquire the basic beginner skills to complete it. Once we get everything installed, we'll create a simple project that allows us to detect surfaces and place custom objects on those surfaces.

How To: 6 Hidden Audio Mods for Your Galaxy S9

With much of the hype centered around its powerful cameras, it's easy to overlook the equally impressive audio capabilities of the Galaxy S9. After all, the S9 and S9+ are the first Samsung flagships to feature AKG-tuned stereo speakers, and that's not even mentioning all the software enhancements that help deliver rich, immersive sound in several different listening situations.

How To: Everything to Do When You Get a New Phone

After setting up your phone, there are a number of things you should do immediately before download your favorite apps. Specifically, now that your data is on the device, you need to take steps now to ensure it's both protected and retained. Fortunately, most of these steps are a one-time process.

How To: The White Hat's Guide to Choosing a Virtual Private Server

Conducting phishing campaigns and hosting Metasploit sessions from a trusted VPS is important to any professional security researcher, pentester, or white hat hacker. However, the options are quite limited since most providers have zero-tolerance policies for any kind of hacking, good or bad. After researching dozens of products, we came out with 5 potentials that are ideal for Null Byte readers.