Write-in

Twitter is a science. The smarter you post and engage with others, the better chance you have at building a bigger audience. Scheduling your tweets is one way to get there. Most engagement occurs at specific hours, but you may not be around then to post your tweet manually. Wh ...more

Threats to your privacy and security are everywhere, so protecting your data should be the highest priority for anyone with a smartphone. However, one threat many people overlook is the company who supplies the operating system your Android phone runs — Google. Google offers ...more

In five short years, three generations of ultra-low-cost Raspberry Pi devices have challenged the boundaries of what a person can do with a $35 computer — especially with Kali Linux. With each Pi more powerful and cheaper than the last, the addition of the Pi Zero in 2015 too ...more

Have you ever forgotten your password and didn't know how to get back on your computer? Or ever had an annoying roommate you wanted to play a trick on to teach them a lesson? Or perhaps overly religious parents who think the internet is of the devil and won't let you read onli ...more

I've already covered how you can automatically save Snapchat photos and videos to your Samsung Galaxy Note 2, and how to take screenshots of Snapchats sent to you without the sender knowing, but there's one other thing about Snapchat that could use some softModding. Currently ...more

It's been a while when the major web browsers first introduced HTTP Strict Transport Security, which made it more difficult to carry Man In The Middle (MITM) attacks (except IE, as always, which will support HSTS since Windows 10, surprised?). SSLStrip and the HSTS Chronicles ...more

A mention of the deep web can bring to mind images of drugs, hackers, and other criminal activity. Despite the presence of these elements, the Tor network is a valuable tool for preserving privacy and anonymity. And browsing the deep web and any hidden services can be as simpl ...more

I saw many people asking for a Tutorial about writing their own Remote Administration Tool, so I now introduce you in a basic kind of RAT. This program is not for real use, but for learning how you could write this kind of tool. It will be basicly coded and not very refined. I ...more

I won't mince words: the Notes widget in iOS 14 is bad. But you're not stuck with it if you want sticky notes on your home screen. Although I enjoy iOS 14's updated widgets overall, its Notes implementation was poorly thought out. I was hoping for a large sticky note on my ho ...more

I can't believe it, but I've actually read about dozens of people getting their iTouch, iPhone, or iPad stuck in a bricked recovery loop and then going out to buy a new one. This is overly unnecessary. When it gets stuck in the recovery loop, some people mistake themselves by ...more

Since I first announced the new Null Byte recognition for excellence a few weeks ago, several of you have written me asking, "How can I study for this certification exam, and what material will be covered on the exam?" Now I have an answer for you. The White Hat Hacker Associa ...more

Welcome back, my aspiring hackers and those who want to catch my aspiring hackers! As most of you know, this series on digital forensics is inspired by the motivation to keep all of you all out of custody. The more you know about the techniques used by law enforcement and for ...more

Did you know Kali 1.0.8? You probably did, and you probably know about the EFI boot option that has been added. That's a very interesting new feature because it allows Kali to be easily booted on Mac too, and every EFI-supported device. First three preview lines gone? As alw ...more

Bloatware is a problem on Android, and it's not just a Samsung thing. Removing apps that have the Uninstall or Disable button grayed out in Settings has always involved sending ADB commands to your phone from a computer, which itself was always such a pain to set up. Thankfull ...more

Each day, we read about another security breach somewhere in our digital world. It has become so commonplace that we hardly react anymore. Target, J.P. Morgan, iCloud, Home Depot, and the list goes on and on. Those are just the big ones that get reported in the news. Millions ...more

If you have the Xposed Framework installed, there's a module that lets you enable background playback in Android's YouTube app without buying a YouTube Red subscription. But Xposed is not available on many devices—particularly those running Android Nougat—so this isn't an opti ...more

Developers creating login systems know better than to store passwords in plain text, usually storing hashes of a password to prevent storing the credentials in a way a hacker could steal. Due to the way hashes work, not all are created equal. Some are more vulnerable than othe ...more

There are so many things in life I wish I could've canceled without any repercussions, and I'm mostly talking about text messages. But nothing is more annoying than cancellation fees. Booking a hotel in advance is usually a good way to save some money and make sure all things ...more

Apple just released its biggest update to iOS 17 yet, and there are 60 exciting new changes for your iPhone. With iOS 17.2, you get a brand new app, more Apple Music enhancements, upgrades in Messages, and a new security feature that was announced last year, as well as changes ...more

There's always an iPhone in our list of top phones for privacy and security, due in large part to advanced security measures like Face ID, consistent iOS updates, and easy ways to prevent unwanted access and excessive data sharing. However, some of those options actually do th ...more

You'll see a lot of Linux action going down here at Null Byte. We use Linux for hacking-related stuff because it provides a more relaxed programming environment, making it easy to write exploits and tools. Linux has many features Windows is lacking, such as full control over t ...more

On Instagram, you can write text over any picture or video in your Story, but it may be hard to get your message across with a distracting background. Although there is a "Type" option for Stories, which allows you to write text over colorful gradient backgrounds, the selectio ...more

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 the ...more

Apple's iOS 16.3 update for iPhone had impressive new features, but iOS 16.4 might impress you even more. The latest iPhone update was released on Monday, March 27 — a day earlier than Apple Music Classical, Apple's new classical music streaming service — has at least 30 more ...more

Surveillance is always a useful tool in a hacker's arsenal, whether deployed offensively or defensively. Watching targets yourself isn't always practical, and traditional surveillance camera systems can be costly, lacking in capabilities, or both. Today, we will use motionEyeO ...more

Welcome back, my budding hackers! As you know, I firmly believe that to be a true professional hacker, you need to be proficient in Linux. This is for a number of good reasons. Most hacker tools are developed in Linux (well over 90 percent). Linux offers us greater granulari ...more

An invaluable button on your iPhone can do hundreds, even thousands, of amazing things, but most iPhone users don't even know it exists. You can't push it. You can't click it. You can't press it. But it's the largest button on your iPhone, more powerful than the versatile Side ...more

The native dictionaries in iOS, which have been around since 2011, let you define words on your iPhone on the fly in Safari, News, Notes, and other apps. But if you read or write in more than just English, you won't be able to see accurate definitions unless you add those othe ...more

Everything you post on social media lives there forever — even if you delete it. Just ask anyone that's ever posted something stupid. Instagram does not provide built-in tools to save or download images and videos from other users, but there are workarounds. Third-party tools ...more

Manufacturers like Samsung and LG have added their own implementation of multi-window features to Android for years now, but with the release of version 6.0 Marshmallow, Google has finally gotten around to working the same feature into stock Android. Don't Miss: How to Enable ...more

An incredible amount of devices use Bluetooth or Bluetooth Low Energy to communicate. These devices rarely have their radios switched off, and in some cases, are deliberately used as trackers for lost items. While Bluetooth devices support MAC address randomization, many manuf ...more

Every time you log in to a website in Safari on iOS, you're also asked if you would like to save the username and password—a great feature of just about all browsers that makes it so that don't have to enter your credentials each time you access website in the future. While th ...more

While keeping your iPhone out of the bedroom might help to avoid unnecessary distractions before bedtime, it could be better served right by your side to help diagnose sleeping issues you may be experiencing each night. With the Apple Health app, and all of the apps and devic ...more

Remember that scene in The Matrix when Trinity uses a realistic Nmap port scan, followed by an actual SSH exploit (long since patched) to break into a power company? Well, believe it or not, but that scene is not far fetched at all. If you want to exploit vulnerabilities and r ...more

Today, we are going to combine what we learned from the Introduction to Cryptography article with our Java programming skills. If you are new to Java, check out Matthew's Learn Java: Part One for a quick beginner's lesson, or check out some of the Java tutorials directly on Or ...more

Dangers abound in the world of srteet art, however one danger stands out as increasingly dangerous. Gangs around the country use graffiti to mark their terriotory and do not take kindly to street artists. In several parts of los angelos gang members will stop you in the middle ...more

Wi-Fi devices are continually emitting "probe frames," calling out for nearby Wi-Fi networks to connect to. Beyond being a privacy risk, probe frames can also be used to track or take over the data connection of nearby devices. We'll explain how to see nearby devices emitting ...more

QR codes are everywhere, from product packaging to airline boarding passes, making the scanners that read them a juicy target for hackers. Thanks to flaws in many of these proprietary scanning devices, it's possible to exploit common vulnerabilities using exploits packed into ...more

Haven't you ever wanted to live in a futuristic home? I think that homes are headed towards an era where they will be controlled by our computers and smartphones. No longer will you have to find your keys to unlock your door, or wait until you get home to monitor your security ...more

In the midst of furious finger typing on a small non-tactile screen, you're sure to make mistakes—so the majority of keyboards have autocorrect. Generally it works pretty well and is a welcomed feature. Until autocorrect decides to screw you over. Example: My mom asks what I ...more

Your iPhone has a lot of personal information contained within it, so of course you want your device to be secure. You don't want that information getting into the wrong hands — or any hands other than your own, for that matter. This guide breaks down the new privacy settings ...more

The Watch Dogs video game series came out in 2014, enamoring audiences with the idea of a seemingly magical smartphone that could change traffic signals, hack web cameras, and even remotely control forklifts. This may sound like science fiction, but The Sonic uses a customized ...more

First off, don't be frustrated. YOU CAN DO IT! Contrary to the message in the image above, it's NOT over. It's just beginning. And when it comes to solving the New York Times crossword puzzle, the old cliche does apply: practice makes perfect. I've read quite a few books and ...more

While it doesn't come with any iPad models out of the box, the Apple Pencil is perhaps the best iPad accessory you can get. It's a powerful writing and drawing tool with an intuitive design and user-friendliness that makes it easy to take notes, draw sketches, mark up document ...more

A few months ago, LlabTooFeR leaked a full system dump from Google's then-unreleased Pixel and Pixel XL smartphones. That may not seem like a big deal at first glance, but the system dump contained all of the preinstalled apps and services from Google's new flagships—including ...more

Two-factor authentication (also known as 2FA) adds a necessary additional layer of security to your username and password in many important apps. On Instagram, 2FA requires you to confirm it's you attempting to log in, with a special code sent to you via text message. Enter th ...more

With only a few days left until Halloween, your options might be rather limited if you still don't have a costume. You may have laughed while some people spent the entire month of October painstakingly crafting their ridiculously detailed costumes, but now that the big day is ...more

It used to be easy to hack tethering—root your device and install a third-party or modded tethering app. But snuck in amongst the changes in Android 4.3, a new data-monitoring service of sorts made its debut. There used to be a time when your data connection was yours. You pai ...more

After you have registered to this site,sign in then to start missions. Basic Missions as you see in the pic in the challenges you can choose any missions but i start from basics. after you go to basic missions(it contains 11 missions) you will see this pic. go to basic 1 St ...more

Facebook essentially strong-armed us all into installing their standalone Messenger app for mobile devices, but the recent initiative that allows third-party development on the platform definitely makes it worth your time. We've been having a lot of fun with all the new Messe ...more

Android Nougat came with a lot of new features, including a futuristic and sleek circle animation. When this article was originally published, it was rumored that the circular design would be used as the new boot animation in Android 7.0—but as it turns out, you'll only see th ...more

JavaScript is the language of the internet. It is what allows us to create dynamic, interesting webpages that are fast, web-based applications and so much more. The primary use of JavaScript is to write functions that are embedded in or included from HTML pages and that intera ...more

Microcontrollers are great. You can do anything from water your garden to catch wildlife trash diggers in the act—and on the cheap. I prefer to use the Arduino microcontroller because of the large and helpful community built around the website. Though it is my favorite, there ...more

As per Alex's request, I am posting about generating word-lists in Python. However, this is my FIRST attempt with Python, so please provide me with critiques and any and all comments. I really want to know what you think as there was a little bump here and there seeing as I a ...more

One of the biggest gripes we always hear about is the changes OEMs make to Android's notification shade. Icon styling and home screen layouts can be fixed with custom launchers like Nova and Action, but we're stuck with the tacky Quick Settings theme our phones came with. Toda ...more

Welcome back, my budding hackers! Metasploit, one of my favorite hacking/pentesting tools, has so many capabilities that even after my many tutorials on it, I have only scratched the surface of it capabilities. For instance, it can be used with Nexpose for vulnerability scann ...more