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Coinbase is the primary go-to for many users when it comes to investing in Bitcoin (BTC), Ethereum (ETH), Litecoin (LTC), Ripple (XRP), and more, due to its user-friendly interface. But before you join them, know that the ease of use comes with a price. Coinbase charges fees f ...more

Welcome back, my budding hackers! With this article, I am initiating a new series that so many of you have been asking for: Hacking Web Applications. In previous tutorials, we have touched on some of the techniques and tools for web app hacking. We looked at web app vulnerab ...more

Windows has always had an "Administrator" account that allowed you to install programs and manage system files with elevated privileges. The difference between this account and a regular user account with administrator access was that you never got bothered by annoying User Ac ...more

Whether it's spotty data coverage, bad customer service, or a high monthly bill, at some point many of us consider changing carriers. The problem is, we often don't want or need to change our devices. Since it's now legal to unlock devices to bring to new carriers, getting dev ...more

The buttons on most Android devices are laid out (from left to right) in a Back, Home, Recent Apps format. Samsung is the lone exception to this rule, which flip-flops them, so this can make for an inconsistent experience if you own multiple Android devices. But thanks to a f ...more

Hackers often find fascinating files in the most ordinary of places, one of those being FTP servers. Sometimes, luck will prevail, and anonymous logins will be enabled, meaning anyone can just log in. But more often than not, a valid username and password will be required. But ...more

The holiday season is creeping up fast, and if you're shopping for a Steampunk, it could be almost impossible to find anything for them unless you know exactly where to look. Luckily for you, some of us have done all of the work you'll need. Whether you're Steampunk shopping f ...more

In my last hack blog on crashing your roommates Win7 system, we started looking at client- side attacks. As promised, we will be looking at some more client-side attacks. As web server and OS’s have become hardened and living behind significant perimeter defenses, hackers hav ...more

Mac OS X has finally added a way to use two apps side by side in full screen mode, à la Microsoft's Windows Snap. But since it's only available in 10.11 El Capitan right now, those of us with older systems will have to wait until the El Capitan Public Preview or final build is ...more

When you think about it, YouTube may actually have one of the largest music collections on the planet. This is why, at $10 per month, Google's new YouTube Music Key subscription is a solid value for many users, especially with its inclusion of Google Play Music. But a new And ...more

Ever accidentally sent an audio message to someone through the Messages app? It happens to me all the time. My finger slips towards the right side of the keyboard and all of a sudden a one-second audio recording is being made and sent. Personally, I don't even send audio messa ...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

Welcome back, my aspiring hackers! Those of you who've been reading my tutorials for some time now know that I am adamant regarding the necessity of learning and using Linux to hack. There is no substitute, period. In this tutorial, though, we will be setting up a system to ...more

There are a ton of new features in iOS 11, but some of the best ones, in my opinion, are in the Camera app. They're not huge features, but they're much appreciated to anyone who's ever taken a Live Photo or portrait, or even to those who've needed to scan a QR code quickly. W ...more

Welcome back, my novice hackers! As many of you know, recon is crucial to a successful hack/pentest. In most cases, hackers spend more time doing good reconnaissance than actually hacking. Without proper recon, you are simply guessing at what type of approach or exploit is go ...more

| Updated February 11, 2019 with new phones. When will my phone get Android Oreo? That's a question still being asked by many, even this late in 2018. Most OEMs have answered this question in one way or another, either releasing a stable OTA or confirming their device won't b ...more

I don't know of a pain greater than of the one felt after cracking the screen of your phone. After I managed to crack my screen, rendered unusable, I immediately began to panic as to how I was going to recover all of the photos, videos, and documents stored on my device. After ...more

PowerShell Empire is a post-exploitation framework for computers and servers running Microsoft Windows, Windows Server operating systems, or both. In these tutorials, we will be exploring everything from how to install Powershell Empire to how to snoop around a target's comput ...more

Ah, the fabled dark mode. In the past, many users were delighted to find the existence of something called Royale Noir, a dark theme option that was available for Windows XP. Yet for reasons unknown, Microsoft had kept knowledge of Royale Noir a secret until some bright minds ...more

With apps and games getting bigger and more memory-hungry every year, storage space is at a premium. High-definition videos and photos of innumerable pixels certainly don't help the matter, either. Sometimes, the things that can soak up our storage the most are things we're n ...more

As familiar as it may look at first glance, there are still tons of subtle changes in Windows 10. Many options that existed in past versions have been moved, and virtually every system menu received at least a small visual makeover. Take the system tray for an example. It's s ...more

All of my hacks up to this point have been operating system hacks. In other words, we have exploited a vulnerability usually in an operating system service (SMB, RPC, etc.) that all allow us to install a command shell or other code in the target system. As I have mentioned nu ...more

Welcome back, my newbie hackers! We've already saved the world from nuclear annihilation and covered our tracks afterwards, but the world is still threatened by a malicious, megalomaniacal dictator with missiles and nuclear weapons. We need to keep a close eye on him, so in ...more

I was in college, and my 15-inch Sony Vaio laptop was my prized possession. It was my first PC and probably the most important thing I brought with me to my dorm — it was both how I completed my assignments and my primary source of entertainment. How could it turn its back on ...more

Before you purchased your smartphone or tablet, the device had already embarked on quite a long journey. From product development to manufacturing, your Samsung Galaxy device had already developed a rich history prior to your ownership. If you've ever wondered exactly where a ...more

SMB (Server Message Block) is a protocol that allows resources on the same network to share files, browse the network, and print over the network. It was initially used on Windows, but Unix systems can use SMB through Samba. Today, we will be using a tool called Enum4linux to ...more

Even though most phones don't have Oreo yet, Google has released Android 9.0 Pie. It's available on Google's own Pixel devices, and updates should soon be available to partnered devices from Essential, Nokia, Oppo, Sony, Vivo, and Xiaomi. We're already digging into it to highl ...more

Many users across the web have reported issues with receiving notifications from the Gmail and Hangouts apps on Android. The problem is most prevalent with users running Marshmallow, and the gist is that notifications from these apps are extremely delayed or don't come through ...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

Apple removed the option to quickly change between miles and kilometers when using Apple Maps on iOS 16, but it's not entirely gone — it's just not as easy to find. On iOS 15, you can switch between miles and kilometers from an obvious location: the "Maps" preferences in the ...more

Aside from identifying songs with Shazam and using the "Hey Siri" feature while driving, Apple's personal assistant isn't something I regularly use on my iPhone. For general searches or queries, I just use a simple Google search. Granted, it isn't as seamless as holding down ...more

Many Nexus 6 owners, myself included, have already started to experience the dreaded burn-in issues that often come with AMOLED display technology. These displays are different than your typical LCD screen in that each pixel emits its own light instead of using a backlight, so ...more

In recent years, Hollywood has taken a shine to hackers, with hackers appearing in almost every heist or mystery movie now. This can be both good and bad for our profession. As we know, whichever way Hollywood decides to depict our profession is how most people will perceive i ...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

Although the Clock app in iOS has undergone some design changes 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, throu ...more

Not too long ago, Sony was looking to create a method for theming the interface of their Xperia smartphones and came up with a framework called Runtime Resource Overlay (RRO). They then contributed this framework to Android's main code base, and Google has since taken over the ...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

When you're browsing the web, going through emails, or reading a book or magazine, you'll occasionally come across a word or phrase that you haven't seen before. This would be a perfect time to have some sort of built-in dictionary lookup service, but most Android apps lack su ...more

Dried fruit makes a great, healthy snack by itself, and it's a nice addition to both sweet and savory dishes. Most people assume you have to have a dehydrator to make it at home, but you don't really need one unless you plan on drying fruit pretty frequently. Your oven does th ...more

Performance boosters generally get a bad rap, but that doesn't mean they should all be dismissed—particularly when they're as well thought out as the latest work from developer Danijel Markov. After recognizing a few inefficiencies in the way Android handles memory management ...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

There's nothing more jarring than the sound of your morning alarm. Even hearing it on others' phones, hours after your own abrupt wakeup, can cause you to flinch in fear. Though we depend on that shrill sound to get up each morning, it's actually better to wake up naturally—so ...more

By now, everybody knows that overcharging a battery will reduce its overall life span. This is why many smartphone manufacturers recommend that you charge your device to 100%, then unplug it immediately. Some even go so far as to automatically stop charging when the device is ...more

While the new Android 4.4 KitKat is only available on one device at the moment (damn you Nexus 5), it doesn't mean that we can't enjoy some of the features it has to offer on our non-KitKat devices right now. We can already get the KitKat launcher and Google Now on our Samsun ...more

There are a lot of apps in Google Play for your Samsung Galaxy Note 2 that let you create, edit, and view Microsoft Office files on the go, but none match up to the power of an app called Polaris Office for Samsung Galaxy devices. However, the newest version, Polaris Office 5 ...more

Now that the Xposed Framework has finally been updated for Android Lollipop, we're starting to notice that some modules function properly, while others are a bit buggy or even worse—don't work at all. Most of this is a result of changes to elements of the Android system that K ...more

The majority of Android web browsers carry a "desktop mode" feature that makes mobile websites look like normal computer versions. Mobile versions are designed to work faster and more efficiently on smartphones, but sometimes the desktop version looks better on large displays ...more

Ad blocking on Android usually requires root access, but a pair of new browsers based on the open source Chromium and Firefox builds are looking to change this. Today, I'll be going over two options for ad-free web browsing without root access. The first is the Chromium-based ...more

Welcome back, my greenhorn hackers! One of the most important issues any hacker must address is how to get past security devices and remain undetected. These can include antivirus software, intrusion detection systems, firewalls, web application firewalls, and numerous others ...more

Dried out markers are the worst. They take up space, and for some reason, even though they're totally useless, most of us have at least a few lying around just for the sake of not throwing them out. Luckily, Julie Finn over at Crafting a Green World has come up with a way to r ...more

With gas prices soaring in the US and around the globe, the cost to drive to a vacation destination is becoming a much larger expense item in the overall travel budget. Although it's easy to see that gas prices have risen dramatically in the past several months, it's not nearl ...more

Welcome back, my tenderfoot hackers! In some of my past articles, I've shown numerous ways of embedding a listener/rootkit on a remote system, including buffer overflows of the operating system, getting the victim to click on a link to our malicious website, and sending a mal ...more

Every time Windows gets a significant update, the vast majority of existing tweaking utilities become obsolete. For every option that you fine-tuned with one of these tools on Windows 7 or 8, there's a change in the registry or system settings that cause your tweaks to now poi ...more

What is your Samsung Galaxy Note 2 running? More than likely, you're still rocking Jelly Bean 4.1.2, which is already pretty outdated. My grandma uses 4.1.2. Seriously, Where the Heck Is the New 4.2.2 Update? After being delayed over and over again by Samsung due to TouchWiz ...more

Back in March, Samsung partnered with Slacker Radio to create a streaming service called Milk Music. For those of us who don't own a Galaxy device, this news was a non-starter, as it was exclusive to Samsung's flagship line of phones and tablets. Since then, mods have made Mi ...more

Android has a permission that allows apps to draw on top of other apps, but as fun as that may sound, it has mostly been used to create floating multitasking utilities. While these can certainly be useful, it would still be nice if this permission were taken literally and we c ...more

Starting a few months back, you might have noticed that some text messages you received from certain friends or family members had blank or missing characters. This was because Apple included all of the new Unicode 8.0 emojis in an update to their iPhones, but Android devices ...more

In the tech world, it's all too common to slap a fake label and packaging on a lower quality product, especially SD cards. If you've ever bought an SD card on the cheap from a slightly-less-than-reputable source (or even a reputable source, in some cases), how do you know if i ...more

While the Samsung Galaxy Note 3 is sure to get an Android 5.0 Lollipop update, there's no official confirmation on when exactly that will happen (rumors state January). In the meantime, there are a number of ways to get some of Lollipop's features on your KitKat device right n ...more