Create a System

Many operators use elevators to control access to particular floors, whether it be the penthouse at a hotel or a server room in an office building. However, the law requires them all to have a fire service mode, which gives emergency access to restricted floors, and a hacker c ...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

The Raspberry Pi loads an operating system from whatever SD card you insert, allowing you to keep different operating systems on separate SD cards depending on which OS you wish to run. A tool called BerryBoot cuts down on the number of SD cards needed by providing the ability ...more

Building a DIY Alarm System: The Concept So, you want to protect your property, or maybe a room, car, or even your backyard. The concept of an alarm system is to notify the "alarm administrator" that there is an intruder entering the previously designated boundaries. The trig ...more

Google's version of Android is best described as AOSP with extra features. But while the Pixel's UI is rightfully praised for its simplicity, those "extra features" aren't as numerous as they are on other OEM skins like Samsung's One UI. Case in point, there's no real system-w ...more

For most of us regular folk, the only opportunity to relish in the conveniences of a maid is during hotel stays. Personally, I would love to have a maid around to help fold my clothes and sweep up those crumbs that accumulate in the corners of my kitchen, but sadly, I currentl ...more

"Cheating is for losers" is only something that losers like to say. If you want to smash your friends and fly up the leaderboards, though, sometimes you have to go that extra mile. Bejeweled Blitz is a PopCap game that can be played on your computer, through Facebook, or even ...more

When the HTC One was announced, the fact that its IR transmitter was a side note more than a main feature made me dismiss it. When Samsung included one in the GS4, it became even less impressive. However, now that I actually have a One, I find that the "TV" app is way more tha ...more

As a hacker, the final stage of exploitation is covering their tracks, which involves wiping all activity and logs so that they can avoid being detected. It's especially crucial for persistence if the target will be accessed again in the future by the attacker. To show you th ...more

Keys are on the way out. They're clunky, take up precious space, and slow you down when you have tons of identical-looking gold ones on your keyring. Everything we can open with keys can now also be opened with wireless technology in just a click—so why use keys anymore? Sure, ...more

Welcome back, my novice hackers! My recent tutorials have been focused upon ways to NOT get caught. Some people call this anti-forensics—the ability to not leave evidence that can be tracked to you or your hack by the system administrator or law enforcement. One the most com ...more

Welcome back, my budding hackers! One of the keys to being successful as a hacker, pentester, or cyber warrior is the ability to find vulnerabilities or flaws in the target system, which are what we exploit when we hack. We have looked at several ways to do that including var ...more

Passwords on Windows are stored as hashes, and sometimes they can be tough to crack. In certain situations, though, we can get around that by using the hash as is, with no need to know the plaintext password. It's especially interesting if we can manage to get the hash of an a ...more

Rooting your Samsung Galaxy Note 2 grants you access to system files, giving you the ability to change things on the device that you normally wouldn't be able to. Sounds great, right? There's just one problem. How in the hell do you manually change those system files? Let's s ...more

Everyone loves using their cell phones for everything except actually making phone calls. Whether it's watching streaming video, listening to music or playing video games, it would seem that calling people is almost an afterthought to cell manufacturers in this day and age. U ...more

Welcome back, my nascent hackers! We have spent a lot of time in previous tutorials focused on hacking the ubiquitous Windows systems, but the vast majority of "heavy iron" around the world are Linux or Unix systems. Linux and Unix dominate the world of Internet web servers w ...more

Before you head to class, work, or sleep, you're probably doing the same thing over and over again—toggling off system settings like Wi-Fi, sound, data, or brightness, depending on the circumstances. Schedules and routines can help increase efficiency, so while you abide to a ...more

Not all of these involve PVC, but the majority do, and they all have their merits.

MacOS isn't known as an ideal operating system for hacking without customization, but it includes native tools that allow easy control of the Wi-Fi radio for packet sniffing. Changing channels, scanning for access points, and even capturing packets all can be done from the com ...more

Google's Pixel and Pixel XL flagship phones are a rousing success, with consumers praising the fluid user experience and overall performance as two of the devices' biggest strengths. But even though Google may have knocked it out of the park with a set of Apple-like smartphone ...more

Anyone who uses a computer on a regular basis probably knows how to access the task manager to check system resources and usage stats. However, on a Samsung Galaxy S3 or other Android device, it may not be so obvious. There's no equivalent to Control-Alt-Delete, but it's still ...more

There's not much you can customize on your iPhone's status bar beyond showing or hiding the battery percentage icon. You can't choose different icons or pick a vibrant color, but there's a secret trick that lets you bold all the text. If you go to Settings –> Display & Bright ...more

Welcome back, my fledgling hackers! Nearly every commercial enterprise worth hacking has an intrusion detection system (IDS). These network intrusion detection systems are designed to detect any malicious activity on the network. That means you! As the name implies, a networ ...more

Yes, you read the title correctly. GameStop has problems, and if you're lax in morals, you can take advantage of them for free games and cash. I'm bringing you all yet another exclusive Null Byte that falls into the fascinating category of life hacking. If you do not like wha ...more

Since Apple launched iOS 13, we've seen four major updates for iPhone, each of which added some cool new features. Between iOS 13.1, 13.2, 13.3, 13.4, and all the minor updates in between, there's never been a better time to be on iOS. And now, we've got even more positive cha ...more

Let's say today is your birthday. You've just put those boisterous, vicenarian times behind you, reaching the first big step to your upcoming midlife crisis—30 years old. Maybe this is your midlife crisis. After all, if you're not where you want to be in life when you join the ...more

OpenBSD implements security in its development in a way that no other operating system on the planet does. Learning to use the Unix-like operating system can help a hacker understand secure development, create better servers, and improve their understanding of the BSD operatin ...more

When it comes to theming your Android device, it's the little touches that count the most. That's why developer SArnab created the Android Theme Engine, an Xposed Module to theme those hard-to-reach corners of the Android System that often go untouched with other themes. So, ...more

Microsoft decided to give users a free upgrade to Windows 10 if they were previously running Windows 7 or 8—but it came with a catch. Their main motivation for knocking off over $100 from the normal going rate was to get more people using new Microsoft services like Cortana an ...more

The sound I get when receiving a new text message is the camel from that Geico commercial yelling "Hump Day!" Sure, I could find a less obnoxious notification sound, but it makes me laugh every time, and that's important. However, it may not make my friends or coworkers laugh ...more

The world of Android gaming is much bigger than what's available in the Google Play Store. If you have a Samsung Galaxy S3 or other Android device—don't just stop there—a hidden treasure of games lies in those boxes of old, dusty game cartridges in your closet. You're already ...more

Apps don't need to come bundled with an entire browser just to be able to display web pages — instead, they can call on the system WebView browser to render content for them. Android's default WebView renderer is Google software, which isn't quite as privacy-forward as some ot ...more

As I've explained before, black app backgrounds save you a bit of battery life on your Samsung Galaxy S5. This is because the AMOLED display on your S5 does not have to power pixels or a backlight for portions of the screen that are black. Developer Kdio knows this, and that' ...more

When you don't have a steady cellular signal or immediate Wi-Fi access but need to communicate with others around you, you can set up an off-the-grid voice communications network using a Raspberry Pi and an Android app. There are apps such as Bridgefy that will create a mesh ...more

System Tool. It sounds like something your Windows computer might need, but it's the exact opposite. System Tool is a computer virus masquerading as a free antivirus program. But don't be fooled, System Tool Antivirus might as well be called System Tool Virus or even System T ...more

Compromised uTorrent clients can be abused to download a malicious torrent file. The malicious file is designed to embed a persistent backdoor and execute when Windows 10 reboots, granting the attacker remote access to the operating system at will. Torrent clients like uTorre ...more

Welcome back, my novice hackers! It has become clear from some of your questions that quite a few of you are unfamiliar with the hexadecimal system, or simply, hex. The hexadecimal system is used throughout computing and if you have never studied this Base16 numering system, ...more

As dedicated bicyclists are well aware, riding can be very dangerous. Now that daylights savings time has ended in the United States, darkness appears quicker, and the night is especially dangerous for cyclists because of the low visibility that drivers have. Not only is darkn ...more