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Every time Apple releases a new product or software update, people quickly figure out exploits in order to bypass the lock screen without having to type in the passcode. It happened last year in iOS 6, so it's not surprising that it happened again in iOS 7. This time, users w ...more

Hi, my name is Alan, and I am not a script kiddy brat from Xbox Live asking you how to boot someone offline for being mean to me. I am an amateur white hat hacker hoping to learn and teach and this is my first tutorial. THC Hydra is very prominent online brute-force tool and ...more

If you haven't heard yet, Google made it possible a couple months ago for every Android user running 2.2 or higher to track his or her smartphone or tablet using their Android Device Manager service. It's a super easy way to track, lock, and secure erase your Android device fr ...more

Starting in Android 4.3, Google added some code to AOSP that tagged your internet traffic when you were running a mobile hotspot, which made it incredibly easy for carriers to block tethering if you didn't have it included in your plan. But as of Android 6.0, this "tether_dun_ ...more

I dabble in video editing, and when working on even the shortest of motion graphics clips, the exported files take up quite a bit of space. For all of you heavy Mac users out there, I'm sure you know my pain. After a short period of time, our computers tend to slow down due t ...more

Look away from this screen and try to remember the sound of your childhood hero's voice. Did you do it? Do it again, and this time pay attention to your eyes. There's a good chance your eyes stayed centered as you decided on who your hero was, moved slightly up and to your le ...more

Greetings my fellow hackers. As you may have noticed by my lack of posts, I've been away for a while working on a big project with a team (which won't be finished anytime soon), and I have also been putting together a small side project for Null-Byte that I will be announcing ...more

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 ...more

On the surface, Instagram is pretty intuitive, so you might think that you already know everything there is to know about using it on your iPhone or Android phone. But this photo and video-sharing app is constantly adding new features, some of which don't make the press releas ...more

Welcome back, my rookie hackers! Many newbie hackers focus upon the technical aspects of hacking and fail to give enough attention to social engineering. In fact, I would say that technical hacks should ONLY be attempted if social engineering attacks fail. Why bother spending ...more

Mobile gaming has exploded in recent years, with experts predicting 2.4 billion global mobile players by the end of 2019. It already accounts for 47% of the worldwide gaming market, besting console and PC. No wonder we've seen the rise of gaming smartphones, a class of phones ...more

Apple's iOS 13 has been available for beta testing since June, and the stable release pushed out to everyone on Thursday, Sept. 19. To help you make the most out of iOS 13 for iPhone, we've rounded up everything you'll want to know, whether a colossal feature, small settings c ...more

Contrary to its name, a permanent marker is not completely permanent if you really need to get it off a non-paper surface. For example, if you ever make the common mistake of using permanent marker on a dry erase board, all you need to do is write over the "permanent" marks w ...more

When the Chromecast first came out about a year ago, developers were quick to find a way to root the streaming device. Google was almost as fast, however, in updating the Chromecast's firmware to close the loophole that this method used. Recently, the developers at Team Eurek ...more

I've been a Sprint customer for a long time. Normally, Sprint (flagship) phones come with some useful apps, such as Sprint TV, Sprint Zone (for payments, updating PRLs, and account information), and NBA Game Time. In other words, relatively free of bloat. However, our AT&T HT ...more

While you may not have loads of secret files hiding on your computer, there might be one or two items that need a little extra security, like a file of website logins or a folder of risqué photos. Mac OS X does have FileVault as a good security option, which uses XTS-AES 128- ...more

No more carrying around heavy laptops and thousands of Linux Live CDs and USBs to always be ready for pentesting on the fly! I hope you had a good Christmas and happy new year! Update1: Added the section "weaponizing your Android" where I talk about apps and fundamental Kali ...more

If you've ever noticed that the stock launcher on an Android device seems to just feel faster than any third-party home screen replacement app, this is not a placebo effect. Most manufacturers, Samsung included, force their stock launchers to reside permanently in your phone's ...more

There are over 1.6 million apps on the Google Play Store, which makes it the largest collection of mobile apps on the planet. However, a large portion of this total is occupied by apps with overlapping functions—think social media, news, weather, music players, and various oth ...more

You can blame your naggy mom, a crappy soap bar, and school or work stress for your acne. But ultimately, you should blame yourself. While it's true that your skin type (oily vs. dry vs. sensitive) and how your skin reacts to stress play a big part in blemishes, there is a nur ...more

Android has a single text file named build.prop that determines tons of various system-wide settings on your device. You need root access to edit this file, since it's stored on the system partition—but the various lines of codes it contains are actually fairly easy to interpr ...more

Welcome to the Official Jackass 3D Prank Contest Submission Page Think you've got the wit and imagination to be a Jackass? Well, here's your chance. Johnny Knoxville and Jackass 3D crew are hosting the first ever Jackass 3D Prank Contest to celebrate the upcoming release of t ...more

Many Android games use large, storage-heavy OBB files to store supplemental data. Generally, games with high-end graphics download these extra files when you install them from the Google Play Store. Most OBB files take up more than a gigabyte of space on your internal storage ...more

Hi, everyone! Recently, I've been working on a pretty interesting and foolish project I had in mind, and here I'm bringing to all of you my findings. This guide's main aim is to document the process of building an Android kernel, specifically a CyanogenMod kernel and ROM, and ...more

What if someone asks you to do a Nmap scan but you left your pc at home? What if a golden opportunity shows during a pentest but you were walking around the building, taking a break? But leaving your phone at home or in the office when you go out is absurd, I mean, everyone b ...more

PRL, or Preferred Roaming List, basically tells your phone which towers to connect to first. Changing PRLs can improve reception and data speeds, and in some cases even give you access to corporate/test towers. Because PRLs only operate on CDMA networks, this method only appl ...more

One of the more competitive aspects to chat apps these days is customizability. It seems every messenger wants to offer the largest number of options for users to make the app feel like a truly personal experience. Telegram is no stranger to this customizability, offering tool ...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

Welcome back, my novice hackers! In my series on cracking passwords, I began by showing off some basic password-cracking principles; developed an efficient password-cracking strategy; demonstrated how to use Hashcat, one of the most powerful password-cracking programs; and sh ...more

Most Android devices allow you to simply replace a ZIP file in your /system/media folder if you want to change your boot animation. Unfortunately, though, this isn't the case for the Galaxy S5, as it's been buried deep in Samsung's TouchWiz skin. Previously, the process of ch ...more

According to WitsView, 8-inch displays will rule the tablet scene this year at 11.9% market share, compared to yesteryear's 2.6% market share. By year's end, it'll be almost 18%. Apple broke the trend for smaller 7-inch tablets with their iPad mini, which is just under 8-inch ...more

There are three tiers to Android customization: things you can do by default, things you can do with ADB, and things you can do with root. While root is still pretty tricky to get, ADB mods just got a lot easier. Back in Android 9, Google added a feature that allowed you to w ...more

Airports are terrible germ-infested purgatories where people sit around for hours without Wi-Fi while they anxiously await to get wherever they really want to go. Unfortunately, there isn't much we can do about waiting, but this little Wi-Fi hack could help make the waiting a ...more

By now, you've probably already installed 10.10 Yosemite, the newest version of Mac OS X, on your computer. While you most certainly noticed the visual changes, you might have missed some of the really cool additions. We've spent the last few days getting to know it, and let ...more

FV Extender for Chrome This is an extension you can download for your the Chrome browser. At this time the extension only accepts and sends back gifts but may do more in the future. See developer's site for more information, and a quick video showing this feature in action. ...more

Due to its constant delays and lack of public invites, the OnePlus One is the equivalent of a unicorn in the Android community. I was lucky enough to win an invite in the OnePlus Storm of Invites promotion and have loved every minute with my new Nexus Killer since receiving it ...more

Emails sent from an iPhone, by default, are signed "Sent from my iPhone," which almost seems like a disclaimer in case the email has spelling or formatting errors. If your goal is to look professional while corresponding with coworkers or potential employers, then you're bette ...more

One of the ultimate goals in hacking is the ability to obtain shells in order to run system commands and own a target or network. SQL injection is typically only associated with databases and their data, but it can actually be used as a vector to gain a command shell. As a les ...more

Banksy, Cope2, Invader, Retna, Mr.cartoon, They all have a few things in common. Firstly, they are all extremely talented and well known urban artists. Secondly, they all have very memorable and very, very cool names. Banksy is the most well known of the bunch, and in my opin ...more

If you're a self-described multitasker, Samsung has a feature that's perfect for you called Multi-Window, which lets you display two apps on your Galaxy S4's screen simultaneously. You can browse the day's news while doing a sudoku, take notes while watching a YouTube video, ...more

When you think of Terminal, you probably imagine some hacker sitting in front of their computer in a dimly lit room trying to break into an FBI database. In reality, it's just a simple tool that can make using your Mac much easier. Now, I'm not saying that learning Terminal c ...more

Say you're out and about when suddenly you get the urge to write a strongly-worded email. You get the words down, but still feel like you could really hammer home the message with the right point of emphasis. Or maybe you just want to make absolutely sure that your recipient c ...more

In my first tutorial on Linux basics, I discussed the importance of hackers using Linux and the structure of the directory system. We also looked briefly at the cd command. In this second Linux guide, I'll spend a bit more time with changing directories, listing directories, c ...more

UPDATE: This post is outdated, the latest version with the correct links and updated instructions can be found UPDATE: This post is outdated, the latest version with the correct links and updated instructions can be found at my blog, here - at my blog, here - https://techkerne ...more

If you need to hack an Android device, try a remote administration tool. Known more familiarly as a RAT, there are open-source RATs that are barebones and exorbitantly priced RATs that are more polished. There are also low-cost and polished RATs that aren't intended to be RATs ...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

Welcome back, my greenhorn hackers! Recently, I asked the Null Byte community what subject they would most like me to cover in future tutorials. Many of you cited scripting, and I decided it's best to cover this subject soon, so here goes. Any self-respecting hacker must be ...more

The Raspberry Pi Zero W and Pi 3 Model B+ include integrated Wi-Fi, Bluetooth Low Energy, and more than enough power to run Kali Linux. They sound like perfect all-in-one penetration testing devices, but the lack of support for monitor mode and packet injection usually meant b ...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

Your first, very basic web crawler. Hello again. Today I will show you how to code a web crawler, and only use up 12 lines of code (excluding whitespaces and comments). Requirements Python A website with lot's of links! Layout the logic. OK, as far as crawlers (web spider ...more

Welcome back, my tenderfoot hackers! Those of you who have been reading my posts here for awhile know how much I emphasize good reconnaissance. Novice hackers often jump into a hack/exploit without doing proper recon and either fail or get caught. Experienced and expert hacke ...more

Hacking from a host machine without any form of proxying is reckless for a hacker, and in a penetration test, could lead to an important IP address becoming quickly blacklisted by the target. By routing all traffic over Tor and reducing the threat of malicious entrance and exi ...more

The digital pen on the Surface Pro 4 and Surface Book is an indispensable tool for serious note-takers and artists alike. Out of the box, the Surface Pen is pre-programmed to do some pretty wonderful things. For example, the eraser can be single-clicked to open Microsoft's On ...more

If you are reading this article right now on your Galaxy Note 20, you are using one of the most powerful smartphones on the market — but are you taking full advantage of it? The answer is likely no, but you can change this with a few apps. The S Pen is the biggest differentia ...more

People who know that I am a professional hacker often ask me what they can do to make their computers and personal information safe from people like me. The answer, of course, is that nothing will make you completely safe, but there are a number of measures any computer user c ...more

Straight out of the box, the Nexus 5 is an awesome device, but even it can be faster with better battery life. Luckily, one of the things that makes it so awesome is that there are tons of developers creating mods for it, since it runs stock Android by default. When it comes t ...more

So, you've finally converted from an iPhone to a Samsung Galaxy S3 smartphone. Great. Only now you're overwhelmed with the unfamiliar look and feel of the Android operating system. Switching from Apple to Android can be a tough transition, but you'll eventually get used to it ...more

Samsung is known for its added features, but occasionally, these can cross the line between functionality and bloat. For many users, this is the case with the "S Finder" and "Quick connect" buttons that are hard-coded into the notification tray on most Galaxy S6 and S6 Edge va ...more