Text Message Bomb

Many guides on Null Byte require using the Secure Shell (SSH) to connect to a remote server. Unfortunately for beginners, learning to use SSH can become a confusing mix of third-party programs and native OS support. For Chrome OS users, using SSH is even more difficult. We'll ...more

With Virtual Network Computing, you don't need to carry a spare keyboard, mouse, or monitor to use your headless computer's full graphical user interface (GUI). Instead, you can connect remotely to it through any available computer or smartphone. Virtual Network Computing, be ...more

Networking is built largely on trust. Most devices do not verify that another device is what it identifies itself to be, so long as it functions as expected. In the case of a man-in-the-middle attack, we can abuse this trust by impersonating a wireless access point, allowing u ...more

The world is full of vulnerable computers. As you learn how to interact with them, it will be both tempting and necessary to test out these newfound skills on a real target. To help you get to that goal, we have a deliberately vulnerable Raspberry Pi image designed for practic ...more

While the world is only recently becoming aware of its existence, augmented reality has been around in some form or another since the '90s. In the last decade, with the advancement and miniaturization of computer technology — specifically smartphones and tablets — AR has becom ...more

The Galaxy S8 has finally touched down, and it's an absolutely gorgeous device. Samsung's brand new flagship comes jam-packed with new features — some refined, and some that aren't. Luckily, we've compiled some major features to help you get started as quickly as possible so y ...more

Google Now, Siri, and Cortana aside, the main way you interact with your smartphone is through the keyboard. Every app you use, every search you perform, every message you send—the most fundamental interface between you and your device is that handful of characters and those 2 ...more

Hello my anxious hackers, the week has started and here we begin a new series that I think will help many here and not only, for those that have the opportunity to follow our tutorials but they are not yet part of the community. Don't be a script-kid? what do you mean? In pro ...more

Third-party ROMs like CyanogenMod are the ultimate form of customization for softModders. Hard-working developers offer us alternate Android experiences to replace our often bloatware-riddled stock ROMs. Installing custom ROMs is performed with a special type of software call ...more

Apple's Live Voicemail lets you preview what an incoming caller is speaking to your voicemail system in real time. It's a revolutionary feature like Visual Voicemail on the original iPhone, only better since it helps you screen calls to quickly decide whether to answer or igno ...more

WhatsApp has a new sticker-making tool in the iPhone app that lets you create custom stickers directly in chats using your own images, eliminating the need to rely on third-party apps to make them. The new sticker maker, which first appeared in late February, works with Whats ...more

Whenever you need to type out a fraction on your iPhone, whether in a message, word document, presentation, math problem, recipe, or wherever else you need it, it's easy to use numbers and slashes. But there's a way to make fractions look more professional and easier to read s ...more

Auto-Correction only improves with time, but after 15 years of continuous development by Apple, it's still nowhere near perfect on the iPhone. However, a few hidden features in iOS can help avoid or mitigate future autocorrect failures, one of which warns you every time it's a ...more

There has been drag-and-drop functionality for iPhone since at least iOS 11, but iOS 15 adds a new ability that makes essential emails even easier to find when you need them. I'm not a big fan of flagging emails in Mail because assigning colors is as organized as it gets. You ...more

Apple's exclusive chat services, iMessage and FaceTime, force many of us to stay locked into iOS, iPadOS, and macOS to communicate with other Apple users, so chatting with Android-using friends means SMS texts, third-party messaging apps, and third-party video chat services. H ...more

The Apple Watch is rapidly becoming a standalone device that you can use without an iPhone or internet connection, and Deezer and Spotify have just helped make that even more true by adding support for offline playback on the watch. Spotify has only offered streaming music on ...more

While Touch ID has been a part of the iPhone's legacy since 2013, Apple waited until 2016 to add biometrics to its MacBook lineup, and it's not as impressive. An iPhone with Touch ID can register up to five fingerprints, but Macs can only register a maximum of three per accoun ...more

It should be simple to select and copy all text on a webpage in Safari, but it won't work as it does in other apps. Usually, you can press-and-hold down anywhere on a page and choose "Select All" from the edit menu, but that functionality is disabled in Safari and WebKit-based ...more

Apple released iOS 14.2.1 for iPhone today, Thursday, Nov. 19. The update includes fixes for a bug where some MMS messages might not be received, an issue where iPhone 12 mini lock screens would be unresponsive, and a problem where "Made for iPhone" hearing devices would have ...more

Apple just released the third public beta for iOS 14.2 today, Wednesday, Oct. 14. This update includes new glyphs for the HomePod mini and Beats Flex, support for HomePod's upcoming new "Intercom" feature, new core media features, and SwiftUI fixes. Intercom is a HomePod feat ...more

If you're like me, no matter how hard you try, your iPhone's notifications are a mess. There's just too many of them. That's when it becomes helpful just to get rid of the whole bunch and start fresh. However, deleting alerts one at a time is as tedious as it is unnecessary si ...more

When you receive a call on your phone, you likely don't think twice about the design when the notification pops up. Whatever the default UI is, that's what works best since there aren't any other choices to pick from. At least, that's how things used to be in the past — we're ...more

Facebook Messenger's user base has grown so much that it has taken over text messaging as the primary contact method for many people. However, sometimes you might want to hide your online status from specific contacts and appear offline to others. There's a neat little trick y ...more

The Digispark is a low-cost USB development board that's programmable in Arduino and capable of posing as a keyboard, allowing it to deliver a number of payloads. For only a few dollars, we can use the Digispark to deliver a payload to a macOS computer that will track the Mac ...more

In the iOS 13.4 update, Apple added folder-sharing capabilities in the Files app. That means you can share multiple documents at the same time instead of doing it one by one. But that's not all — you can share folders with numerous contacts and even enforce access and permissi ...more

Apple released iOS 13.4 to public beta testers on March 18. The update comes the same day we learned that iOS 13.4 would be made available March 24. The sixth beta is iOS 13.4's GM (golden master), even though Apple refers to it as "beta 6." Apple released iOS 13.4 to public ...more

Apple released iOS 13.4 to registered developers on March 18. The update comes just hours after news broke that iOS 13.4 would hit all compatible devices on March 24. The update is the GM (golden master), which makes it the same build as the official release we expect to see o ...more

Smartphones are more like computers than actual telephones. Unfortunately, thieves, hackers, and other bad actors know this and are always looking to make money off your personal data. Thankfully, your Galaxy S20, S20+, or S20 Ultra has tools to combat these threats — as long ...more

There are times when physically interacting with your iPhone is less than ideal, like when you're cooking or driving. Fortunately, iOS 13 has you covered regardless of the circumstance you may find yourself in. With the new Voice Control feature, you can control pretty much ev ...more

In November 2016, the RCS Universal Profile (Rich Communications Services) was introduced. The technology takes text messaging to the 21st century, emulating many of the features found in IM apps like WhatsApp and iMessage, but working through your phone number like regular SM ...more

Apple's iOS 13 for iPhone includes new features in Safari that make browsing the web a little bit better when compared to iOS 12. Some changes are small while others add functionality that just wasn't there before. Plus, there are more security enhancements. While Safari didn ...more

What if, back in 2013, Google Glass had launched not as a Star Trek Borg-like eyepiece, but as a pair of seemingly normal shades, with the augmented reality lens and camera hidden within the frame? Google Glass has been almost permanently tagged with the "glasshole" moniker, ...more

Whether gabbing via cloud chat or Secret Chat, there's no denying that private messaging is one of Telegram's strengths. Communications can often occur at night, where Telegram's default bright white theme can be a bit uncomfortable to use, but Telegram supports dark mode on A ...more

MouseJack vulnerabilities were disclosed over three years ago. Some wireless keyboard manufacturers have since issued firmware updates, but millions (if not billions) of keyboards remain unpatched worldwide, either because they can't be updated or because the manufacturer neve ...more

When you can't think of a way to respond in Messenger with words, emojis and stickers will do the trick. Since Facebook is all about the "likes," which use a thumbs-up icon, there's a shortcut to the symbol just to the right of the chat field. It's always there to send a quick ...more

With a simple social engineering trick, sudo passwords can be captured in seconds without the target's knowledge. The passwords can then be saved to a file or exfiltrated to another computer on the network. After exploiting a system, penetration tester's and hackers will ofte ...more

All of the new iPhones from 2018 were released with dual-SIM support, but none of them were capable of actually using the eSIM in iOS 12, only the physical nano-SIM. But on iOS 12.1 and later, you can finally take advantage of eSIM so you can have, say, a business and personal ...more

The main draw for Google's Pixel series is the software. It rocks a clean version of stock Android instead of a heavy OEM skin like TouchWiz, it gets frequent prompt OS updates, the camera software is downright amazing, and it has perhaps the most fluid UI of any phone. But an ...more

If you've ever been on the receiving end of a threatening phone call, you'll immediately know the value in being able to record phone conversations on your iPhone. Beyond that extreme example, however, recording calls is still an extremely useful feature to have for important ...more

Apple may pride itself on its commitment to user privacy and security, but it isn't invulnerable. We now know there is a bug in the latest version of iOS 12 and iOS 12.1 beta that allows those in the know to bypass your passcode and access contacts and photos. This applies to ...more

We're nearly there — Apple released the seventh iOS 12 beta to developers Monday, August 13. While not totally unexpected, beta testers understand the struggle of predicting the next update, as Apple has switched haphazardly between two-week, one-week, and irregular release sc ...more

For the second time in a row, Apple pushed out a new iOS 12 developer beta on a Monday, and for the first time this round, they've done it only one week after the last one. While the August 6 release of iOS 12 developer beta 6 doesn't contain a wealth of updates, there are sti ...more

Apple released the fifth developer beta for iOS 12 on Monday, July 30, only 13 days after the release of dev beta 4 and 12 days after public beta 3. Until this release, Apple kept a consistent two-week schedule for developer beta updates, so we were a little surprised to see t ...more

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 conn ...more

As the official release of iOS 12 nears closer each day, Apple continues to update its betas. The company released the fourth beta of the upcoming software to developers Tuesday, July 17, exactly two weeks after the release of the third developer beta which came out just a few ...more

Ever since 3D Touch's introduction in iOS 9 for the iPhone 6S and 6S Plus, a little-known trick for moving the cursor around and selecting text was built into Apple's stock keyboard. On iOS 12 or later, it works for all iPhone models with or without 3D Touch or Haptic Touch ba ...more

Thanks to its advanced cameras, the Galaxy S9 can capture videos at an astonishing 960 frames per second (fps). To put it in perspective, you now have you the ability to record the world around you in ways that previously required expensive professional camera equipment. And t ...more

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 ...more

When you don't want somebody you're calling to know the real phone number associated with your iPhone, whether it's for privacy reasons, to avoid being called back, or to prevent being ignored, there are multiple things you can do to block it on their caller ID. Some of the b ...more

Recently, many manufacturers have started offering phones with a clean, stock Android UI. Motorola, Essential, Nokia, and OnePlus are probably the biggest names that have listened to user feedback and shifted more towards AOSP. But if your phone still has a bloated OEM skin, t ...more

Coinhive, a JavaScript cryptocurrency miner, was reportedly discovered on the BlackBerry Mobile website. It was placed there by hackers who exploited a vulnerability in the site's e-commerce software that allowed them to anonymously mine cryptocurrency every time the website w ...more

Root, TWRP, Xposed, Magisk, custom ROMs — before you can have any of these, the first thing you should do is unlock your bootloader. Thankfully, the Pixel 2 and Pixel 2 XL are some of the most modder-friendly phones out there, so you only need to send a single fastboot command ...more

So you spent all day customizing your phone. You tinkered with all the settings, searched the web high and low for the perfect wallpaper, and found an ideal icon pack to complement the color scheme. You go to sleep, proud of the work you accomplished when the unspeakable happe ...more

When Apple first introduced Live Photos in iOS 9, it was a big hit for those who had 3D Touch devices — but one thing this cool feature was sorely missing was editing options. Thankfully, Apple has fixed that in iOS 11 by turning Live Photos into a complete package with editin ...more

In the first part of my containers series, we learned how to install Docker on our local machine, pull down "hello-world" and Ubuntu containers, SSH into containers, and install software when in a container. Now, we're going to work on building, customizing, and storing our re ...more

Google is on a mission to bring a better messaging experience to Android users. We've seen them try and fail over the years with various messenger apps, but this time, they're taking a different approach by working with industry leaders to create a new messaging standard. The ...more

The latest update to iOS 10 brought with it a number of great new features. Of these, the one that will likely have the most impact on people's iOS experience in the long term are the new apps and stickers for iMessage. Stickers make up the vast majority of what you'll find i ...more

When a new version of iOS comes out, everybody gets caught up in the craze of finding features and playing around with new functionality. But this generally leads to a lack of coverage on the finer aspects of the update—things like bugs, minor tweaks, and pain points that user ...more

With certain apps and games, it's all about the settings. In order to get your money's worth with one of these, you simply have to take the time to tweak and adjust various options, which is something a lot of users don't necessarily want to do. Take GravityBox for example—th ...more

If you somehow forgot the pattern, PIN, or password that locks your Android device, you might think you're out of luck and are destined to be locked out forever. These security methods are hard to crack by design, but in many cases, it's not entirely impossible to break into a ...more