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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

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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

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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

Smartphone displaying settings on dark mode next to a laptop keyboard.
HOW TO
12/11/2024 4:39 pm

Setting Default Apps on Your iPhone or iPad Just Got a Lot Easier

Since 2020, you've been free to set your preferred web browser and email app as the default on your iPhone or iPad. Now, four years later, Apple is expanding this flexibility in the U.S., allowing even more apps to be set as defaults for specific actions. Plus, there's now a centralized menu to mana ...more

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HOW TO
09/16/2024 7:47 pm

How to Lock and Hide Apps on Your iPhone or iPad — The Official Way

You can lock practically any app on your iPhone or iPad behind biometric or passcode protection. And we're not talking about using any funky workarounds, either. There's now an official Apple way to protect sensitive apps and their data. It even safeguards your personal information, keeping it out o ...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

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

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

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HOW TO
05/09/2024 3:42 pm

How to Hide Stories in Your Facebook Feed on iPhone or Android

When Facebook introduced Stories in 2017, many users despised the Snapchat-like feature on their main page. However, despite the outcry, Facebook doesn't plan to let you remove it. But you don't have to settle for this. With the help of some third-party apps, you no longer have to deal with Stories. ...more

WhatsApp account setup interface showing options to select a country and enter a phone number.
HOW TO
05/09/2024 3:00 pm

How to Clone Any Android App on Your Samsung Galaxy Phone

Samsung has a cool security feature built into One UI that has an interesting side effect, one that lets you have two separate copies of any Android app on your Galaxy phone. And that's not the only integrated Samsung tool for cloning apps. Some mobile apps have built-in account switching so that yo ...more

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HOW TO
01/18/2024 6:34 pm

How to (Almost) Always Win a Bet with Your Friends Using These 10 Tricks

So, the in-person conversations between you and your friends has slowed down to a near halt, thanks to everyone's obsession with texting, Facebook, and over-uploading pics to Instagram—socializing at its best. It could also be that you're just not interesting enough anymore in person. Want to get yo ...more

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HOW TO
01/18/2024 4:36 pm

12 Hilarious Emblem Designs for Call of Duty: Black Ops 2 (And How to Make Them)

Does executing a perfectly timed, no-scoped headshot, followed by a well-choreographed teabagging ever get old? No, no it doesn't, and neither do custom emblems for Call of Duty: Black Ops 2. How else are we going to kill time until Black Ops 3 arrives? I've already covered many, many, many differen ...more

Green liquid being poured from a glass.
HOW TO
01/05/2024 9:56 pm

Make Slime Without Borax: 5 Easy Recipes for Gooey Homemade Ooze

One of the only things I remember from watching Nickelodeon as a kid is the epic green slime. Looking back, I don't know what was so great about it, but every kid my age thought that being drenched in slime would be the coolest thing on earth. GiphyOf course, the first thing I did was beg my parents ...more

Smartphone displaying streaming content alongside Blu-ray boxes and headphones.
NEWS
07/25/2023 11:33 pm

Gift Guide: Must-Have Phone Accessories for Movie Lovers

There's never been a better time for streaming videos on your phone. With so many options available (including a potential mobile-only Netflix tier) and so many new smartphones having large screens, there's a good chance you know someone who mainly use their phone for videos. And if you looking for ...more

Smartphone with an orange bow on a colorful celebration background.
NEWS
07/25/2023 11:33 pm

Gift Guide: The Best Android Accessories to Buy for the Techy Person in Your Life

Need a unique gift idea for the techy person in your life? Look no further than that phone they always have in their hand. There are plenty of great accessories, apps, subscriptions, and other smartphone-related goodies that will improve their quality of life, and thoughtful gifts like that are alwa ...more

Smartphone and photography accessories on a wooden surface.
NEWS
07/25/2023 11:32 pm

Gift Guide: Must-Have Phone Accessories for Photographers

With smartphone cameras and software getting better and better every year, more and more users are getting passionate about photography. So when you're shopping for a gift to get someone, if they have a smartphone, chances are they'll more than appreciate some tools and accessories for taking better ...more

Smartphones displaying app settings with input prompts.
HOW TO
06/29/2023 1:18 am

How to Set Multiple Timers on Your iPhone to Run Side by Side

Although the Clock app in iOS has undergone some designchanges over the years, you still can't set more than one timer on your iPhone. Oddly enough, Apple's own HomePod speaker added this feature, mimicking the timer on Amazon's popular Echo smart speakers. Fortunately, through Apple's Shortcuts app ...more

Multitasking view on a tablet displaying a spreadsheet, data charts, and file folders.
HOW TO
05/08/2023 11:00 am

Multitask Like a Pro on Your iPad by Using Up to 4 Open Apps at the Same Time

Apple's latest multitasking feature for iPad lets you go beyond Split View's two-app restriction to use up to four apps at once. Here's how it works. While Split View gives you two apps to work with side by side, Stage Manager, available on iPadOS 16.1 and later, gives you two to four apps simultane ...more

Portrait mode toggle icon on a device.
HOW TO
12/23/2022 1:56 am

The Trick to Using Your iPhone's Portrait Mode in Other Photo and Video Apps

Your iPhone's Camera app isn't the only place you can use Portrait mode for selfies. An easy-to-miss feature built right into iOS lets app developers leverage Apple's powerful Portrait mode effect in their own apps, so you can add a shallow focus effect to photos and videos when using the front-faci ...more

A person holding a small, intricate mechanical model.
NEWS
11/17/2022 7:00 pm

Meet SALTO, UC Berkeley's Bushbaby-Inspired Robot with Insane Leaping Skills

It's odd to see grown humans attempting to bounce off walls doing parkour. It's another thing altogether to see a robot doing it. University of California Berkeley's Biomimetic Millisystems Lab has created the world's most vertically agile robot—capable of jumping to unimaginable heights. Meet SALTO ...more

Smartphone screen displaying time, date, and battery status.
HOW TO
10/04/2022 7:46 pm

All the Apps with Lock Screen Widgets for Your iPhone

Apple's just ushered in a new era for widgets on your iPhone. With the iOS 16 update, each of your lock screens can have up to five widgets. While Apple's apps were the first to get lock screen widgets, third-party developers can code their own ones into their apps — and here's a list of every app w ...more

Incoming call screen on a smartphone with a red call button.
HOW TO
09/26/2022 10:24 pm

The Most Annoying iOS 16 Issues on Your iPhone and How to Fix Them

The iOS 16 update for iPhone has many new and exciting options, most of which improve the user experience overall. Some of the features and changes fix frustrating issues from iOS 15 and older, and some of those "fixes" can seem annoying if you're used to doing things a certain way. Luckily, many of ...more

Incoming call screen on a smartphone with a blue case.
HOW TO
09/15/2022 8:01 pm

New iPhone Feature Stops Your Audio Calls from Ending Prematurely

Whenever you're on an audio call in the Phone or FaceTime app and accidentally press your iPhone's Side button, the call ends immediately. It's a helpful feature for those who like to terminate calls that way, but it's flat-out annoying for everyone else who inadvertently ends calls prematurely. Now ...more

Caller ID displaying the number +1888-555-0147 on a mobile device.
HOW TO
08/30/2022 11:54 pm

Make Spoofed Calls Using Any Phone Number You Want Right

Spoofed phone calls originate from one source that's disguising its phone number as a different one, and you probably get these calls all the time. Maybe they're numbers from your local area code or for prominent businesses, but the callers are just hijacking those digits to fool you into picking up ...more

Costco membership card displayed on a smartphone.
HOW TO
08/30/2022 6:30 pm

Do This If You Want to Add an Unsupported Card or Pass to Apple Wallet

Apple's Wallet app lets you store boarding passes, concert tickets, gym memberships, vaccination cards, movie stubs, rewards cards, insurance info, student IDs, and more in one place on your iPhone, and you just double-click the Home or Side button to access them. Unfortunately, many cards and passe ...more

Per-App Settings interface on a smartphone.
HOW TO
08/20/2022 9:37 pm

How to Always Use Dark Mode or Light Mode for Any App on Your iPhone

Some apps look great with Dark Mode, and some do not. So when you have system-wide Dark Mode enabled on your iPhone and are using an app that only looks good in Light Mode, you'd normally have to turn the dark appearance off manually, then switch it back on when you leave. But there's a workaround t ...more

Person holding a smartphone displaying a website related to gadgets.
HOW TO
08/12/2022 2:24 am

Safari 101: How to Find Specific Words or Phrases in Webpages on Your iPhone

Apple's default browser for iOS, Safari, has a ton of useful features, and there's so many that it's impossible to know everything you can do to browse the web more efficiently. One you may not know about brings the Command + F keyboard shortcut right to your mobile browser so you can search for wor ...more

Text message on a smartphone screen reading "Steganography is cool" with options for cut, copy, paste, and share.
HOW TO
08/03/2022 2:40 am

Use Invisible Zero-Width Characters to Hide Secret Messages in Plain Sight

With a simple web-based tool, you can hide secret messages for family, friends, and fellow spies inside of plain text communications, and anyone that intercepts the messages will be none the wiser. Steganography is the art of hiding secret messages comprised of text, code, audio, images, video, docu ...more

Video playback interface featuring a pause button and a timer displaying '10' on a mobile device screen.
HOW TO
07/18/2022 7:32 pm

All the Apps That Work with Picture in Picture for iPhone

Since iOS 9, the iPad has had Picture in Picture mode, which lets you minimize a video that you're watching into a floating overlay so that you can multitask in other apps while it plays. For iPhones, it came a little later, first appearing in iOS 14. It's not just for the Plus or Max displays eithe ...more

Chat screen displaying emojis and message options on a smartphone.
HOW TO
07/13/2022 6:01 pm

You Can Now Use Any Emoji for WhatsApp Message Reactions

Instead of responding to a WhatsApp message with short texts like "LOL" or thinking too hard about something meaningful to say, use an emoji reaction. They cut down on clutter in group chats and take up less space than typing emoji individually in a conversation. WhatsApp initially limited reactions ...more

Smartphone screen displaying tips for conserving battery life.
HOW TO
05/24/2022 10:21 pm

How Your iPhone Can Help You Read Faster with a Bionic Reading App

Apple News. Facebook. Twitter. Reddit. LinkedIn. These are just a few of the apps you probably have on your iPhone or iPad that keep you up to date on today's events. Unfortunately, they can also cause information overload. But a new viral speed-reading tool thinks it can help you process your daily ...more

A mobile phone displaying a video game featuring a character running along a sandy path through canyons.
HOW TO
05/18/2022 10:19 pm

Remember These Popular App Store Games? They're Still Alive to Play Today

The App Store has been around for almost 14 years now, and during that time, we must have seen over a million games come and go and stay and expand. But only a tiny fraction of those games have become blockbuster sensations because of the mighty App Store's reach on iPhone and iPad, and many of the ...more

Text messages on a smartphone lying on grass and leaves.
HOW TO
05/04/2022 6:59 pm

How to Send Star Wars Emoji in Text Messages & Chats

Why are there no official Star Wars emoji in the Unicode Standard? We've got the "Vulcan Salute" from Star Trek, so where's the force choke hand gesture?! While you may never see Star Wars officially invade your emoji keyboard, there are ways to send Star Wars emoji and stickers to your friends in y ...more

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HOW TO
04/11/2022 9:01 pm

Every App You Can Use FaceTime's SharePlay Feature with Right Now

SharePlay is arguably one of the most significant features to hit FaceTime since group calls, and it's still hard to find apps that support shared experiences in FaceTime. Apple does list a few apps, but there is no official index of all the apps with SharePlay integration. That's where we come in. ...more