Turn a .Zip File Into a .Ipsw File

The OnePlus 6T is easily one of 2018's best value phones for many reasons, especially when it comes to rooting and modding. But like many new phones, it's plagued with the single bottom-firing speaker that left us wanting more in the sound department. The speaker is decent on ...more

After you unlock the bootloader, install TWRP custom recovery, and flash Magisk to gain root access, what might be the next step of your modding adventure? A custom kernel, of course! Flashing a custom kernel onto your device gives you a whole new level of tweaks and customiza ...more

Cross-site scripting is one of the most common vulnerabilities found on the web today, with repercussions of this type of flaw ranging from harmless defacement to sensitive data exposure. Probing for XSS can be tedious and time-consuming for an attacker, but luckily there are ...more

Overall, iOS is more impressive than ever with its stability enhancements, security tools, suite of apps and services, and intuitive user interface. With each passing update, things just get better and better for iPhone users. But don't think for a second that this is all beca ...more

Apple's macOS operating system is just as vulnerable to attacks as any Windows 10 computer or Android smartphone. Hacker's can embed backdoors, evade antivirus with simple commands, and utilize USB flash drives to completely compromise a MacBook. In this always-updated guide, ...more

A powered-off MacBook can be compromised in less than three minutes. With just a few commands, it's possible for a hacker to extract a target's password hash and crack it without their knowledge. The goal in this article is to acquire a target's .plist file which contains the ...more

The OnePlus 5 doesn't have too many weak spots, at least not when you consider the price. But you might feel that the company with the slogan, "Never Settle," might have actually settled a bit with its camera. The OnePlus 5 and 5T don't have bad imaging specs, but they could u ...more

No matter how good a display is, the idea of perfect color calibration is subjective — some prefer warmer more saturated colors, while others prefer the calmer cooler side of the color spectrum. It is almost impossible to create a single color calibration that everyone can agr ...more

Smartphones and other Wi-Fi enabled devices send radio signals called probe frames to locate nearby wireless networks, which makes them easy to track by listening for their unique MAC address. To show how this kind of tracking works, we can program a NodeMCU in Arduino to snif ...more

The most common Wi-Fi jamming attacks leverage deauthentication and disassociation packets to attack networks. This allows a low-cost ESP8266-based device programmed in Arduino to detect and classify Wi-Fi denial-of-service attacks by lighting a different color LED for each ty ...more

The macOS 10.14 security update tried to make parts of the operating system difficult for hackers to access. Let's take a closer look at how its new feature works and what we can do to spoof the origin of an application attempting to access protected data. Apple introduced so ...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

The next big iOS version for iPad, iPhone, and iPod touch was revealed by Apple at WWDC 2018 and dropped for everyone on Sept. 17, 2018, less than a week after Apple revealed the new iPhone lineup. We've rounded up all the big picture items and secret features and changes we c ...more

With the new iPhones coming out, many see the current mobile market as just another epic battle between Samsung and Apple. But let's not forget there are many other phones that run Android. And when you start to sift through the specs, one stands out as a competitive alternati ...more

Hackers and makers are often grouped under the same label. While hackers draw on computer science skills to write programs and find bugs, makers use electrical engineering to create hardware prototypes from microprocessor boards like the Arduino. We'll exercise both sets of sk ...more

In most macOS hacks, a non-root terminal is used to create a backdoor into the device. A lot of damage can be done as a low-privileged user, but it has its limitations. Think twice before granting a file permission to execute — an attacker might be able to convert your harmles ...more

MacOS isn't known as an ideal operating system for hacking without customization, but it includes native tools that allow easy control of the Wi-Fi radio for packet sniffing. Changing channels, scanning for access points, and even capturing packets all can be done from the com ...more

The Galaxy S9's Super Slow-mo feature comes packed with tools that help you tweak your slow motion clips like a pro. Among these is the ability to convert your slow motion videos into GIFs with a user-friendly interface. As a result, it's incredibly easy to go from recording t ...more

You've protected your Ubuntu system from physical attacks, annoyed network hackers, and sandboxed potentially malicious applications. Great! Now, the next logical steps to locking down your OS include thoroughly auditing Ubuntu for weak points, using antivirus software that re ...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

If you're using a mobile device, it's a pretty safe bet that your apps are sending lots of information back and forth from their servers. To make sure there is no inappropriate data collection going on, it's worth setting up a web proxy to spy on this traffic, so you know exac ...more

The latest Star Wars movie, Solo: A Star Wars Story, has grossed almost $350 million worldwide during its first month in theaters. This is a good opportunity to discuss how hackers can use media hype (in this case, Hollywood movie hype) to disarm an unsuspecting Windows user i ...more

Passwords and data stored in web browsers are extremely valuable to hackers. If not for financial gain, black hat hackers may still leak your passwords and personal information for amusement. Never undervalue what you're worth to a hacker. While I'm definitely no black hat, d ...more

We need to take our privacy and security much more seriously. Whether it's malware-infected apps or the mishandling of our data by companies like Facebook, there are threats all around us in this digital world. Fortunately, some smartphones are simply designed to protect us be ...more

It's possible to stream a MacBook's entire computer screen without using Apple's Screen Sharing application and without opening any ports on the target device. A hacker with low user privileges on the backdoored Mac may be able to view a victim's every move in real time no mat ...more

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 listenin ...more

Talk about rapid-fire. Apple released the sixth beta for iOS 11.4 on Thursday, May 17. The update comes just three days after the release of iOS 11.4 beta 5, indicating that Apple is readily approaching the official release of the software. Apple has not issued an official iOS ...more

Apple is speeding things up in the iOS 11.4 development. The company released to developers the fifth beta for iOS 11.4 on Monday, May 15. Public beta testers got the update just hours later. The update comes just one week after the release of the fourth 11.4 beta, which intro ...more

The conversation of which operating system is most secure, macOS vs. Windows, is an ongoing debate. Most will say macOS is more secure, but I'd like to weigh in by showing how to backdoor a MacBook in less than two minutes and maintain a persistent shell using tools already bu ...more

Apple released the fourth developer beta for iOS 11.4 on Monday, May 7, followed the next day with the public beta release. This update arrives just six days after the company seeded beta 3 to users, which fixed an 11.3 issue with 3D Touch, among other various bugs. You can d ...more

Hashes containing login passwords are transmitted between Windows computers on local Wi-Fi networks. By intercepting and decrypting these hashes using Responder and John the Ripper, respectively, we can learn a target's login credentials which can be later used to gain physica ...more

Apple released the third beta for iOS 11.4 on Tuesday, May 1. This update comes exactly two weeks after the release of the second beta, which, in addition to adding a new wallpaper, fixed issues with AirPlay, Music, and Keychain. The only noticeable change in beta 3 is a fix f ...more

While there are at least five cool things coming in iOS 11.4, they may not be enough to get you to install the iOS 11.4 beta on your iPhone. Since its initial beta release at the start of April, there have been plenty of known issues and user-reported bugs to deal with. While ...more

There are hundreds, if not thousands, of programming languages and variations of those languages that exist. Currently, in the augmented reality space, it seems the Microsoft-created C# has won out as the overall top language of choice. While there are other options like JavaS ...more

With the software installation out of the way, it's time to build the framework within which to work when building an augmented reality app for Android devices. The journey to learn how to develop software can be a long and tough road. Fortunately, software developers, in way ...more

If you want to follow Null Byte tutorials and try out Kali Linux, the Raspberry Pi is a perfect way to start. In 2018, the Raspberry Pi 3 Model B+ was released featuring a better CPU, Wi-Fi, Bluetooth, and Ethernet built in. Our recommended Kali Pi kit for beginners learning e ...more

There are a number of options and hidden menus within Android that provide users more control over their device. With this control, you can better manage how your phone operates. We came up with a list of tips and shortcuts that, when used, will slowly put you on a path to bec ...more

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 cus ...more

While Wi-Fi networks can be set up by smart IT people, that doesn't mean the users of the system are similarly tech-savvy. We'll demonstrate how an evil twin attack can steal Wi-Fi passwords by kicking a user off their trusted network while creating a nearly identical fake one ...more

A powered-off Windows 10 laptop can be compromised in less than three minutes. With just a few keystrokes, it's possible for a hacker to remove all antivirus software, create a backdoor, and capture webcam images and passwords, among other highly sensitive personal data. The ...more

Identifying vulnerable devices and services on a target router can be difficult without leaving logs and other traces of an active attacker on the network. However, there is a way to covertly decrypt and view Wi-Fi activity without ever connecting to the wireless network. Whe ...more

The Galaxy S9 was announced February 25, and it's jam-packed with features like AR Emojis and and a Dual Aperture camera. You really love the cut of its jib, but maybe you don't have the means to get your hands on one. Well now, you can get the Galaxy S9's notification sounds ...more

In the previous article, we learned how to set up our VPS, configure our PHP server, and developed an in-depth understanding of how the payload works. With all that taken care of, we can get into disguising our payload to appear as an image and crafting the note in the greetin ...more

After testing a series of Android 8.0 builds, Essential hit the reset button and jumped to Android 8.1 Oreo. The beta program didn't last long, as Essential has now released the official 8.1 update to the masses. The features from the 8.0 betas are all still there, plus a few ...more

As a developer, before you can make augmented-reality robots that move around in the real world, controlled by a user's finger, you first need to learn how to harness the basics of designing AR software for a touchscreen interface. In recent years, the vernacular for referrin ...more

When you make an awesome song or beat that you're proud of in GarageBand for iOS, one way to show it off is to turn it into a ringtone or alert tone for your iPhone. That way, anytime you get a phone call or a notification, your musical creation will sound off, and everyone ar ...more

To please those of us who love to mod and root our Androids, OnePlus has made both the OnePlus 5 and 5T relatively easy to customize — so much so that the 5T topped our list for the best phones for rooting. Unfortunately, unlocking the bootloader and using root to modify the f ...more

There are plenty of third-party apps for scanning documents on your iPhone, but they can all be tossed out the door since iOS 11 includes one by default now. Instead of a dedicated app, it's included as part of the Notes app, and it's fairly easy to use. After scanning, you ca ...more

During our last adventure into the realm of format string exploitation, we learned how we can manipulate format specifiers to rewrite a program's memory with an arbitrary value. While that's all well and good, arbitrary values are boring. We want to gain full control over the ...more

Android users have had access to live wallpapers since the Eclair days, but some newer apps have made this feature even more useful. Now, you have the ability to use GIFs as your wallpaper, and through the marvels of modern technology, you can even set a video as your home scr ...more

The greatest pain in owning a high-powered gaming PC is the simple fact that you can't play it all the time. Sometimes you have work or school, and other times, you may just want to go mobile. When something like this impedes your ability to play PC games, you may end up settl ...more

Whether you're new to Android or you just haven't kept up on the app scene lately, we hand-picked over one hundred essential apps that are all designed to improve your experience. From custom launchers and icon packs to weather apps and file explorers, there's something for ev ...more

Apple's codec for photos and videos in iOS 11, HEVC (High-Efficiency Video Coding), as well as the container, HEIF (High-Efficiency Image File Format), result in a reduction in size for pictures and movies without sacrificing quality. Seems like a win-win situation, but Window ...more

Internet Relay Chat, or IRC, is one of the most popular chat protocols on the internet. The technology can be connected to the Tor network to create an anonymous and secure chatroom — without the use of public IP addresses. IRC servers allow one to create and manage rooms, us ...more

Ransomware is software that encrypts a victim's entire hard drive, blocking access to their files unless they pay a ransom to the attacker to get the decryption key. In this tutorial, you'll learn how easy it is to use the USB Rubber Ducky, which is disguised as an ordinary fl ...more

The LG V30 is an amazing device that will contend for best smartphone of 2017. It has all the major features you'd expect from a high-end flagship, and it even includes what's become a rare commodity these days — a headphone jack. However, for the purists out there, the LG UX ...more

When hacking into a network during a penetration test, it can sometimes be useful to create your own wireless AP simply by plugging a Pi into an available Ethernet port. With this setup, you have your own backdoor wireless connection to the network in a matter of seconds. Crea ...more

Apple's iOS 11 release promises many improvements and fresh ideas. One of those new ideas is an image codec called HEIF (similar to HEVC for videos), designed to reduce the space photos take up on your iPhone. But it's so new that it's already causing issues with compatibility ...more

Apple's iOS 11 is finally here, and while they showed off several of the new features it brings to your iPhone, iPad, and iPod touch back at WWDC 2017, they've only just touched the surface of what iOS 11 has to offer. There are a lot of cool new (and sometimes secret) feature ...more

A PirateBox creates a network that allows users to communicate wirelessly, connecting smartphones and laptops even when surrounding infrastructure has been disabled on purpose or destroyed in a disaster. Using a Raspberry Pi, we will make a wireless offline server that hosts f ...more