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The iPhone Storage settings page displayed on an iPhone.
HOW TO
02/19/2025 5:07 pm

The Ultimate Guide to Freeing Up Storage Space on Your iPhone

Although your iPhone does not offer an option to upgrade internal storage space using a memory card, as some Android phones do, there are plenty of things you can do to clear up storage so you can put everything you want on your device and stop getting those Storage Almost Full alerts. You may not b ...more

World map overlay on a digital green binary background.
HOW TO
02/14/2025 7:54 pm

How to Get Started Writing Your Own NSE Scripts for Nmap

The road to becoming a skilled white hat is paved with many milestones, one of those being learning how to perform a simple Nmap scan. A little further down that road lies more advanced scanning, along with utilizing a powerful feature of Nmap called the Nmap Scripting Engine. Even further down the ...more

Microcontroller setup on a breadboard with wires and LED.
HOW TO
02/14/2025 7:52 pm

How to Control Anything with a Wi-Fi Relay Switch Using aRest

A relay is an electrical component that works like a light switch, where it's turned on or off with an electrical signal. By connecting a relay to a Wi-Fi connected microcontroller like an ESP8266, you can build a connected switch that can be controlled from the web browser of any device connected t ...more

Security camera mounted on a building.
HOW TO
02/14/2025 6:36 pm

How to Intercept Images from a Security Camera Using Wireshark

It's common for IoT devices like Wi-Fi security cameras to host a website for controlling or configuring the camera that uses HTTP instead of the more secure HTTPS. This means anyone with the network password can see traffic to and from the camera, allowing a hacker to intercept security camera foot ...more

Digital illustration of an eye overlaying a world map, symbolizing global vision or oversight.
HOW TO
02/14/2025 6:33 pm

How to Easily Detect CVEs with Nmap Scripts

Nmap is possibly the most widely used security scanner of its kind, in part because of its appearances in films such as The Matrix Reloaded and Live Free or Die Hard. Still, most of Nmap's best features are under-appreciated by hackers and pentesters, one of which will improve one's abilities to qui ...more

Code snippet displaying a terminal connection to a remote server.
HOW TO
02/14/2025 6:29 pm

How to Use the Chrome Browser Secure Shell App to SSH into Remote Devices

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 fix this by using the C ...more

Code snippet showcasing Python programming.
HOW TO
02/14/2025 6:12 pm

An Intro to Vim, the Unix Text Editor Every Hacker Should Be Familiar With

As pentesters and hackers, we're going to be working with text frequently — wordlists, configuration files, etc. A lot of this we'll be doing on our machine, where we have access to whatever editor we prefer. The rest of it will be on remote machines, where the tools for editing will be limited. If ...more

Coding interface with lines of code and a colorful graphic of a character.
HOW TO
02/14/2025 6:08 pm

How to Encrypt Your Notes, Photos, and Archives with EncryptPad

For anyone wanting to keep information private, plain text is a format of the past. Instead, cheap, powerful encryption is widely available, but often not easy enough to use to attract widespread adoption. An exception to this rule is EncryptPad, an easy to use application that lets you encrypt text ...more

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HOW TO
02/14/2025 6:01 pm

How to Locate and Exploit Devices Vulnerable to the Libssh Security Flaw

Computers all over the world rely on a program called "libssh" to use the SSH communications protocol, which allows trusted users to log in and administer computers remotely. Due to a flaw in libssh, fooling a computer into granting SSH access is as easy as telling it you already have permission. Th ...more

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HOW TO
02/14/2025 5:52 pm

How to Exploit Recycled Credentials with H8mail to Break into User Accounts

Many online users worry about their accounts being breached by some master hacker, but the more likely scenario is falling victim to a bot written to use leaked passwords in data breaches from companies like LinkedIn, MySpace, and Tumblr. For instance, a tool called H8mail can search through over 1 ...more

A stylized halftone black-and-white image of an astronaut standing on the left, gazing at a sloping, cratered landscape on the right. The image is made of white dots on a black background, creating a retro, high-contrast effect.
NEWS
02/11/2025 3:50 pm

Super Bowl Ads 2025: AI Commercials in the Spotlight

For decades, Super Bowl ads have been used as a launching platform for new products, devices, and even technologies. In Super Bowl LIX, it took center stage in the exploding AI space. Until now, the tech crowd has ravenously ingested much of the most pertinent AI news. The innovators and early adopt ...more

Adding a Raspberry Pi 5 microcontroller with an active cooler heatsink/fan to an aluminum TFT enclosure.
HOW TO
02/07/2025 5:36 pm

Create Your Own Ethical Hacking Kit with a Raspberry Pi 5

If you started your ethical hacking journey with our recommended Raspberry Pi 3 B+ setup, it's time to consider upgrading your beginner's ethical hacking kit to the Raspberry Pi 5 for even better performance and capabilities. After a nearly four-year hiatus, Kody Kinzie returns as the host of Null B ...more

Number 19 in a modern graphic style.
NEWS
02/04/2025 10:41 pm

Everything We Know About iOS 19 So Far

The first beta version of iOS 19 is still months away, but Apple has been hard at work getting the next-gen iPhone software ready for developer testing. And we already know of a few potential changes and updates you can expect to see. Codenamed "Luck," iOS 19 is being developed alongside macOS 16 (" ...more

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NEWS
01/31/2025 10:58 pm

160+ New Emoji Are Coming, Including Bigfoot, Distorted Face, and Apple Core

The Unicode Consortium is already hard at work on the next batch of emoji, but don't get too excited just yet. It may be a while before you see these new characters, which include an apple core, orca, and hairy creature, on your devices. Unicode 17.0, with its Emoji 17.0 update, isn't expected to be ...more

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HOW TO
01/16/2025 5:54 pm

Keep Your Night Vision Sharp with the iPhone's Hidden Red Screen

Night Shift, Dark Mode, Reduce White Point, and Zoom's Low Light Filter all help reduce the harmful effects on your body's clock that bright iPhone and iPad screens have at night. But there's another option on iOS and iPadOS that turns your entire display red, and it's useful for so much more than j ...more

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HOW TO
01/16/2025 5:50 pm

VSCO 101: How to Use the Selfie Camera on Your Android Phone

If you love to take selfies and post them online for all the world to see, then it's important to ensure that you are always sharing your best side. It's pretty common for people to just open up their stock camera app and snap a quick photo, wherever they may be — but there's a bet ter camera you co ...more

Sound wave symbol with an upward trend on a smartphone screen.
HOW TO
12/30/2024 11:46 pm

Set Vocal Shortcuts on Your iPhone for System Actions, Shortcuts, and More

Voice Control has long been a cornerstone of hands-free convenience on iPhones, but for users with unique speech patterns or atypical speech, standard recognition systems often fall short. Apple's solution? Vocal Shortcuts. While this innovation is a game-changer for those with speech differences, i ...more

Phone displaying a dial pad with numbers and a signal indicator.
HOW TO
09/26/2024 6:10 pm

Master iOS 18's T9 Dialing for Lightning-Fast Contact Searches on Your iPhone

Tech tends to move forward without looking back, but that doesn't mean new is always better. One feature that dominated mobile phones in the late '90s had made a comeback thanks to Apple, and you can take advantage of it on your iPhone when making calls. Text on 9 keys, known better as T9, is a pred ...more

Smartphones in various colors arranged side by side.
HOW TO
09/20/2024 6:56 pm

iPhone 16 Series — Preorder and Release Dates, Prices, and Where to Get One

Apple announced the new iPhone 16 and 16 Pro series models on Sept. 9, and the focus on this year's smartphones was Apple Intelligence with an even smarter Siri. But generative artificial intelligence isn't the only new feature these devices come with. There are improved cameras, more advanced proce ...more

Eastern Conference standings on a smartphone.
HOW TO
07/30/2024 7:36 pm

iOS 17.6 Has 13 New Features and Changes for iPhone You Need to Know About

As the iOS 18 beta continues, Apple's still investing time into fixing up iOS 17. Compared to iOS 17.4 and iOS 17.5, which both had over 30 new features and changes, iOS 17.6 is a relatively small software update for iPhone. But there are still some important things to know about. Apple released iOS ...more

Mobile phone displaying a map with location markers.
HOW TO
07/23/2024 2:31 pm

Add Locations to Un-Geotagged Photos Before Posting to Your Instagram Photo Map

Instagram introduced Photo Maps back in 2012, a feature allowing users to showcase where they've taken photos and explore where others have been, all through an interactive map. Through the hyperlinked location at the top of each photo, you can go through a timeline of all of the public photos that ...more

Dog in a green outdoor setting, close-up of a bike handlebar, and a hand holding a green wallet.
HOW TO
07/10/2024 9:07 pm

20 Surprisingly Practical Uses for Apple AirTags

Apple AirTags are super helpful for keeping track of your keys, backpack, and other frequently misplaced items, but there are some pretty clever things you can do with them beyond finding regularly used stuff. Apple sells its smart trackers — small, circular white discs 1.26 inches in diameter and 0 ...more

Calculator apps displayed on smartphones showing various calculations.
HOW TO
06/25/2024 3:02 pm

Update Your iPhone Calculator's Look with These Easy Color Mods

If you're anything like me, you use the Calculator app on your iPhone like fifty times a day, and you're sick of the same user interface it's had since iOS 11 came out. While you can't mod the button shapes and sizes, there is a way to breathe new life into your calculations with some Calculator the ...more

Calculator display on a standing device with a blurred window backdrop.
HOW TO
06/25/2024 3:02 pm

11 Best Calculator Apps for iPad to Solve All Your Math Needs

Apple doesn't include its Calculator app on the iPad and never did. One almost appeared over 12 years ago but was nothing more than a blown-up version of the iPhone app. Since then, the company still hasn't made an iPad-optimized calculator, and there is no shortage of third-party alternatives to fi ...more

Calculator interface displaying mathematical functions and numbers.
HOW TO
06/25/2024 3:01 pm

20 Hidden Calculator Tricks for Your iPhone

The Calculator app is probably one of Apple's most-used iPhone apps, yet I always meet people who don't know all the little tricks there are to using it more efficiently. You may know most of them, but there's a chance you don't or at least forget about some of them. What a "hidden trick" is to some ...more

Calculator displaying the number 24.
HOW TO
06/25/2024 3:01 pm

How to Fix the Broken iOS 11 Calculator on Your iPhone

If you've running iOS 11.1 through iOS 11.1.2, whether you have an iPhone X or an iPhone 5S, you'll notice that Apple's Calculator app can't keep up with your calculations. That's a because a bug has seriously slowed it down so that operation buttons won't always trigger when you press them. Luckily ...more

Mobile phone displaying a tip message on a background of dollar bills.
HOW TO
06/25/2024 3:00 pm

Calculate Tips Faster on Your iPhone Using the Shortcuts App

When it's time to calculate a tip at a restaurant or bar, I usually try some mental math at first, but sometimes I resort to opening the Calculator quickly from the Control Center on my iPhone and doing a quick calculation. But with Apple's Shortcuts app, there's an even easier way, and you don't ev ...more

Close-up of a smartphone keyboard with text entry field.
HOW TO
06/03/2024 8:30 pm

How to Unlock the Apple Logo Emoji on Your iPhone, iPad, or Mac

Thousands of emoji are available on iPhone, iPad, and Mac, and you can use these in many of the apps you have installed on your Apple devices. But there's one emoji you'll likely never see on any of Apple's official emoji keyboards, and its absence may surprise you at first, considering it's embedde ...more

Smartphones displaying app settings and alerts on a purple background.
HOW TO
05/29/2024 10:04 pm

The 14 Best Spotlight Search Features for iPhone You Didn't Know About

Apple's built-in search on iPhone is an incredibly valuable tool you shouldn't ignore or underutilize, and we're here to show you why. So, buckle in because this list covers hidden and lesser-known Spotlight features that will leave you wondering how you ever lived without Spotlight Search on iOS. S ...more

Assorted smartphone cases with cardholders in various colors and designs.
HOW TO
05/23/2024 11:52 pm

The Best MagSafe Wallets You Can Buy for Your iPhone in 2024

Phone in one pocket, wallet in the other? It's the classic combo guaranteed to give you more pocket bulge. But it's 2024. Half that stuff in your wallet is practically antique. It's time to finally ditch all the dead weight and get a MagSafe wallet for iPhone — and we've got the best picks to slim y ...more

iPhone home screen displaying weather, calendar, and activity widgets.
HOW TO
05/16/2024 10:36 pm

17 New Accessibility Features Coming to iPhone and iPad with iOS 18 and iPadOS 18

In less than a month, WWDC, Apple's Worldwide Developers Conference, will reveal the company's plans for the upcoming iOS 18 and iPadOS 18 software updates. But we already know what accessibility features will be hitting iPhones and iPads later this year, and many of them will be helpful to everyone ...more

Phone screen displaying upload mode information and instructions.
HOW TO
05/09/2024 6:32 pm

How to Use Odin to Flash Samsung Galaxy Stock Firmware

If you own a Samsung phone and enjoy rooting or modding your device, flashing official firmware can be very useful. Odin is Samsung's own internal program for loading such updates for testing purposes, and it's quite easy to use for your own custom modification needs. Though Odin is fairly simple, t ...more

"When iPhone 15 Pro Max is connected to power"
HOW TO
05/09/2024 6:02 pm

Make Siri Say Whatever You Want Every Time You Connect Your iPhone to a Charger

Whenever your iPhone's ringer is on, you'll hear Apple's iconic "Connect Power" chime every time you connect it to a wired or wireless power source, which lets you know that charging has started. There's no way to disable the sound without turning on Silent mode, but there is a way to make Siri auto ...more

Smartphone displaying a mobile app interface against a textured background.
HOW TO
05/09/2024 5:53 pm

How to See All Your Wi-Fi Passwords on Android

You've probably connected your Android device to dozens of Wi-Fi networks since you've had it, and your phone or tablet remembers each of them. Whether it's a hotspot at home, school, work, the gym, a coffee shop, a relative's apartment — or even from a friend's phone — each time you type in a Wi-Fi ...more

A person holding a smartphone displaying a text-based screen.
HOW TO
05/09/2024 5:30 pm

How to Test Your Samsung Phone with Secret Code *#0*#

Besides obvious features like a touchscreen and biometric sensors, the modern smartphone comes with an array of state-of-the-art hardware in the form of various sensors that help your device sense the environment around it. And if you have a Samsung handset, chances are, you have a handy feature bui ...more

Smartphone displaying a list of items on a colorful background of advertisements.
HOW TO
05/09/2024 5:27 pm

How to Prank Your WhatsApp Friends by Sending 100 Messages in Only 1 Second

When I got my first smartphone, it didn't take long before my friends and I created a game that we liked to call "Paste-Send." You see, instead of having to use T9 to type out text messages, the touch-based interface made copying and pasting incredibly easy. So that meant we could copy a piece of te ...more

App options menu on a smartphone with a messaging app icon.
HOW TO
05/09/2024 3:54 pm

15 Hidden iMessage Features for iPhone You Probably Didn't Know About

There are many things Apple doesn't tell you about its products, and that's definitely the case when it comes to its Messages app. Hidden features lurk in your SMS and iMessage conversations just waiting to be found, and we've unearthed some of the most secret ones. Instead of just sharing all of th ...more

Productivity apps displayed on a smartphone screen.
HOW TO
05/06/2024 8:03 pm

15 iPhone Tips for Busy Users to Maximize Your Productivity

When they first appeared, smartphones came with a promise to make our lives easier and make us more productive so we could have more free time and energy. But now, the average user spends almost 5 ½ hours daily on their smartphone. If that sounds like you, there are ways to use your iPhone more effi ...more

Smartphone screen displaying app icons for phone, video call, and messaging.
HOW TO
04/27/2024 1:13 am

Make Your iPhone Do All Your Talking for You on Calls and in Person

When you don't feel like talking, let your iPhone do all the work. Yes, your iPhone can speak for you, and it works over phone calls and FaceTime calls. It will even work its magic over your iPhone's speaker for in-person conversations. While Apple created this feature to support people who are unab ...more

Smartphone screen displaying various app icons.
HOW TO
03/18/2024 9:26 pm

7 Things Hiding in Your iPhone's App Icons You Probably Haven't Noticed Yet

Apple likes hiding things in its software, including secret apps, hidden iMessage effects, status bar customization, nameless icons, and red screen mode, but some of its best Easter eggs are right in front of you on the Home Screen. Some of Apple's app icons on iOS 17, iPadOS 17, and earlier version ...more

Sashimi preparation tips with thinly sliced fish on a cutting board.
HOW TO
02/15/2024 10:10 pm

How to Cut Fish for Sashimi

Some hate the idea of sashimi, but others love it. If you love sushi, this is the dish for you. It's a Japanese meal of bite-sized raw fish, usually eaten with soy sauce and horseradish paste. And sashimi can be a very simple dish to create, but there are essential things to learn about cutting the ...more

Futuristic flying vehicle hovering above a city street.
NEWS
02/15/2024 9:18 pm

Bat Science: How Realistic Are Batman's Gadgets in Dark Knight Rises?

One of the best things about Christopher Nolan's Batman trilogy is how realistic he makes the caped crusader feel. Unlike the Joel Schumacher or even the Tim Burton versions, Nolan's world seems grounded in some level of scientific fact. But just how close is science to actually being able to replic ...more

HOW TO
02/15/2024 9:15 pm

How to Make a Simple Fog Machine to Prank Your Roommates

Like theme music, I always feel that I need more fog in my life. Fog can be useful for many reasons—warding off smaller siblings from your bedroom, keeping curious hands out of your cupboard, and tricking your friends into thinking there's something horribly wrong with their vehicle. So, today we'll ...more