Multiply Whole Number with Square Root of a Number

It's official: The next version of Android will be code-named "Marshmallow," and we're getting a whole number bump to version 6.0. Lots of exciting new changes are coming to the world's most popular operating system, including a "Now on Tap" feature that will give you relevant ...more

When I first received my HTC One M8, I was in love with the 5-inch screen size, but the icons and font just seemed too big, wasting valuable screen real estate. Phablets, like the Samsung Galaxy Note 4, have only slightly larger screens, but don't seem to have this problem sin ...more

If you're like me, then you've got an incredibly complicated Wi-Fi password with uppercase and lowercase letters, numbers, and special characters. When friends or family come over, it can be really hard to relay the password correctly. Repeating it out loud is usually hit or ...more

In order to unleash the full potential of your Samsung Galaxy Note 3, you've got to root it. These days, it's easier than ever, and can be done by just plugging your device into a Windows computer and pressing one button. It's so easy, your grandmother could do it, so what's s ...more

The Google Phone app is one of the best dialers for Android today, especially with all of the unique and exciting features it brings to the table. Unfortunately, without owning a Pixel phone, you are unable to officially download the app, making a modified version your only op ...more

It's no secret that Android has a messaging problem. iPhone users can turn to iMessage as a one-stop shop for all their messaging needs — features like read receipts and the ability to text from a computer have been standard with Apple products for quite some time. Android has ...more

What do Leo Tolstoy (writer), Beethoven (composer), Paul Gaugin (artist), and Adolf Hitler (politician) have in common? They are all considered to have suffered from the sexually transmitted disease syphilis. With the incidence of sexually transmitted infections (STIs) and se ...more

The two primary design paradigms in Samsung's One UI Android skin are vertical padding and rounded UI elements. The extra empty space at the top of most menus moves touchable elements closer to your thumb, and the rounded UI elements match the curved corners of modern smartpho ...more

Slack's in-app web browser works fine, but it just doesn't offer the functionality and features that a dedicated browser such as Chrome, Firefox or Safari can. Features like the ability to bookmark a page, search for specific text, or request the desktop site are missing. Luck ...more

Greetings null-bytians. Firstly, I would like to apologize for the no images thing. I guess I can't upload them. If you have watched the documentary titled "In the Realm of the Hackers", the one about two Australian hackers, Electron and Phoenix, you will know that it was a g ...more

If I were a math major, I'd probably be rolling in dough somewhere in Silicon Valley right now, but since multiplying numbers and figuring out tangents gives me panic attacks, I went the English route... pays much better. Still, I never would have graduated if I didn't pass a ...more

There are a number of different techniques for building underwater in Minecraft. The easiest is to fill a room with wood or leaves, then set them on fire. It'll burn down, leaving a pocket of air for you. However, if you're on a server like ours, mc.wonderhowto.com, fire does ...more

The OnePlus 7 Pro is truly the best phone that the company has ever created to date — it's even one of the hottest phones around regardless of OEM. It offers an awesome display with minimal bezels, a smooth 90-hertz refresh rate, a pop-up selfie camera, and the best triple cam ...more

The first thing you'll always have to do before getting your customization game on with most phones is to unlock the bootloader. Doing so opens the true potential of the device, allowing you to root, install TWRP, Magisk, custom ROMs, and other mods. No matter your wants or ne ...more

After gaining access to a root account, the next order of business is using that power to do something more significant. If the user passwords on the system can be obtained and cracked, an attacker can use them to pivot to other machines if the login is the same across systems ...more

Earlier this year, with the Developer Preview, we got a tantalizing glimpse of Google's upcoming Android 9.0 Pie and a whole slew of new features that comes along with it, such as iPhone X-like gestures and improved security features, to name a few. With its announcement at Go ...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

Apple first announced Business Chat, a new way for customers to communicate with companies, at WWDC 2017. While Business Chat did not arrive with the initial release of iOS 11, Apple pushed it out in iOS 11.3 so companies can offer customer service in a whole new way, and it w ...more

So after setting everything up, creating the system, working with focus and gaze, creating our bounding box and UI elements, unlocking the menu movement, as well as jumping through hoops refactoring a few parts of the system itself, we have finally made it to the point in our ...more

Citrus greening disease — caused by a bacteria spread by psyllid insects — is threatening to wipe out Florida's citrus crop. Researchers have identified a small protein found in a second bacteria living in the insects that helps bacteria causing citrus greening disease survive ...more

You might feel the bite, you might not, but an infected mosquito has injected you with a parasite named Plasmodium falciparum, a single-cell protozoa that quickly takes up residence in your body. You don't feel a thing as the parasite infects your liver and begins to multiply ...more

To much of the United States, Zika seems like a tropical disease that causes horrible problems in other countries but is nothing to be worried about stateside. It may make you rethink your beach vacation abroad, but not much more than that. However, if you live in Florida or T ...more

How do I get rid of these zits?! Whether its pimples, blackheads, or whiteheads, the name is the same, and the name is acne. If you have acne, you are not alone. According to the American Academy of Dermatology, about 50 million people are impacted by acne vulgaris each year. ...more

New weapons are needed to combat antibiotic-resistant bacteria. Instead of drugs, scientists have discovered in an animal study that they may be able to harness vampire bacteria to vanquish pneumonia. Microbes, good and bad, predate and outnumber us. Humans will never "win" a ...more

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 editi ...more

If you want to become a food Instagram star, you may want to consider having babies. Well, to be more specific, you might need Mike Chau's two adorable children, Matthew and Samantha. Video: . Don't Miss: Make Copycat Pocky Sticks in Any Crazy Flavor Combination You Want Mik ...more

Welcome back! In our last training session, we covered some advanced list topics. We'll be going deeper into the advanced list rabbit hole today with lambda and lambda operators! (And I'm not talking about Gordan Freeman) We'll start by explaining lambda and giving an example ...more

In my last guide, I showed how you could crack the combination of any Master Lock combination padlock in 8 tries or less using my online calculator. Now, as promised, I'll be showing you how I devised the attack, which is based off the well-known technique that reduces the 64, ...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

Let's get one thing straight: CyanogenMod is one hell of a ROM. They've got a great community, a great product, and getting it on your HTC One couldn't be easier with their CyanogenMod installer, which does all the hard rooting and bootloader unlocking for you. If at all you ...more

The very first text message was sent on December 3rd, 1992 by Neil Papworth, an engineer for Vodafone, and it simply said "Merry Christmas." He may have jumped the gun on the whole Christmas thing, but you trying coming up with the first text message in history! Today, there ...more

Forum member Luciano posted a terrific guide on adding hacks to our phone by editing build.prop. The article was great, but one of best things I saw in it was the "What You'll Need" section: A current nandroid/backup of your device. Having current and complete backups of you ...more

Steampunk music is an oft-debated genre, full of bands playing all sorts of different sounds. While this can make it difficult to generalize about the genre as a whole, it means that the average person is bound to like at least some Steampunk bands. That's why it's a great ide ...more

Siri can perform many actions for you on your iPhone, such as sending messages, providing information, getting directions, looking up a contact, and playing music. Still, there are even more important Siri voice commands that every iPhone owner should know — even the ones who ...more

After a hacker has configured Metasploit on a remote private server, created a resource script for automation, and created a simple payload, he or she can begin the process of remotely controlling someone's Windows 10 computer with just a few moments of physical access — even ...more

While installing the new Android 9.0 Developer Preview is fairly easy if you're using a Windows machine, it's a little trickier if you want to use macOS instead. To help you get the latest Android OS on your Google Pixel phone, we'll break down the whole process so using your ...more

Are you interested in video editing, but have no background in it? Are you looking to put together a short from some clips you've shot, but don't know where to start? You could use iMovie, an application that comes free with every iPhone, but then what would you do on Android? ...more

Puzzle games are a great way to kill time and exercise your brain in one fell swoop. They challenge you to think strategically and plan ahead, whether that's to create killer chain combinations for maximum points, or to plain old keep from getting killed. But with so many puz ...more

Walsh, a new community under construction on 7,200 acres of former ranch land near Fort Worth, Texas, will one day contain 15,000 homes. To sell prospective home buyers on the development before it is fully built, Republic Property Group is leaning on technology. A high-spee ...more

Welcome back, my greenhorn hackers, and happy New Year! Now that your heads have recovered from your New Year's Eve regaling, I'd like to grab your attention for just a moment to preview 2015 here at Null Byte. I hope you will add your comments as to what you would like to se ...more

When you want to brighten up your iPhone's screen, you likely use Control Center's brightness slider to increase your nits (especially if you've disabled auto-brightness). But once you max it out, it doesn't seem like the display can get any brighter. However, depending on you ...more

Thanks to Magisk, you don't have to lose root when updating to Android 11. The popular systemless rooting tool already achieved superuser access on Google's latest OS, even before the official release. It's currently in its experimental stages so the process is trickier than u ...more

TWRP is the premiere custom recovery for Android because of how many devices it supports and how simple it is to use. But installing it in the first place hasn't always been the easiest thing to do — until now. With the help of a Magisk module, you can finally use one Android ...more

The top five apps of the 2010s were all social media apps of some kind, and the fact that's not surprising to you says a lot. We may use them for other reasons here and there, but our phones are social media machines at their cores. The thing is, some make better machines than ...more

TWRP won't be ready for the Pixel 4 and 4 XL until months after release. But since you can already root with Magisk and tinker with the OS, you might find yourself in a situation where your phone won't boot, yet you don't have a custom recovery installed to fix it. Luckily, th ...more

Though more well known for their OLED displays and advanced cameras, Galaxy phones like the S8, Note 10 & 10+ and S10 series are a force to be reckoned with when it comes to audio. In fact, flagships from the S9 on up feature AKG-tuned stereo speakers, along with a slew of sof ...more

When new Android versions come out, the modding community has to find new ways to root the OS. It's a fun cat and mouse game to follow, but it also means the process of rooting isn't exactly the same as it was the last time you did it. Android 10 changes how root works on a sy ...more

Automating port scanners, directory crawlers, and reconnaissance tools can be complicated for beginners just getting started with Kali Linux. Sparta solves this problem with an easy-to-use graphical interface designed to simplify a penetration tester's tasks. Sparta, authored ...more

Apple's scheduled to show off the first look of iOS 13 at WWDC 2019 on June 3, but what will the new operating system hold for iPhone? Rumors suggest that many features initially planned for iOS 12 will show up in iOS 13, codenamed "Yukon," and dark mode will be the big ticket ...more

EternalBlue was a devastating exploit that targeted Microsoft's implementation of the SMB protocol. Metasploit contains a useful module that will automatically exploit a target, as long as it's vulnerable. But what if we wanted to exploit this vulnerability without Metasploit ...more

In a previous guide, I demonstrated how to extract images from a security camera over Wi-Fi using Wireshark, provided you know the password. If you don't know the password, you can always get physical with the Hak5 Plunder Bug. Using this small LAN tap, we can intercept traffi ...more

A few months ago, iOS 12.1 came out with a handful of useful new features, and iOS 12.2 goes even further. While some of iOS 12.2's new features for iPhone are much welcomed, there are some that we'd be better without. Apple's iOS 12.2 started beta testing on Jan. 4, 2019, an ...more

Before attacking any website, a hacker or penetration tester will first compile a list of target surfaces. After they've used some good recon and found the right places to point their scope at, they'll use a web server scanning tool such as Nikto for hunting down vulnerabiliti ...more

When you want to install a new tool or game on your iPhone, you go straight to the App Store to do so — but it's not the only place you can get apps from. Some developers use back alleys to get their apps to you, while others can trick you into installing them without giving i ...more

Picture this: You finally get that awesome angle, the perfect selfie. You can't wait to post it on your Instagram, except there's one problem — it looks a little flat and the colors just seem off. Maybe it's the lights? Or maybe your new smartphone camera isn't as good as you ...more

In a way, Twitter is the town square of our era, where people can share and discuss ideas on a wide variety of topics. While the tech giant has its own app for Android, it's pretty bare-bones when it comes to features. This has paved the way for third-party clients that are ri ...more

Instagram has extensive tools built in for creating and editing posts and Stories, but there could always be more. Third-party apps can help you add photo and video effects for even more visually stimulating content, as well as create announcements, text-based images, and ever ...more

When flashing files through TWRP, ADB, or Fastboot, there's a slight chance for things to go wrong. Whether it's user error related or something else entirely, it's always good to have a backup plan. In most cases, you'll be dealing with a semi-brick or soft-brick, which can 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

When it comes to modding Android, there's no better tool than Team Win's TWRP custom recovery. You can use it to root your phone, flash mods like Magisk or Xposed, and even replace the entire operating system with a custom ROM like LineageOS — honestly, there's not much this u ...more