Set a Network on a Computer

In five short years, three generations of ultra-low-cost Raspberry Pi devices have challenged the boundaries of what a person can do with a $35 computer — especially with Kali Linux. With each Pi more powerful and cheaper than the last, the addition of the Pi Zero in 2015 too ...more

Backing up your files is a requirement in today's world of tech. In an instant, your storage device can fail. This is an unacceptable situation that should never happen to anyone. Storage is cheap, and backups are easier than ever to perform. Most of the time, this can be comp ...more

Hi I am a new member of null byte(although I am reading this website from the beginning) and this is going to be my first post. Let me introduce myself first ! I am from Greece, I am working as a network engineer and I am into system and network administration but definitely ...more

The Raspberry Pi is a credit card-sized computer that can crack Wi-Fi, clone key cards, break into laptops, and even clone an existing Wi-Fi network to trick users into connecting to the Pi instead. It can jam Wi-Fi for blocks, track cell phones, listen in on police scanners, ...more

Want to be able to print wirelessly without having to buy a pricey network printer? Now you can! All you need to do is follow these simple, quick, steps. What you need: At least two computers running Windows Normal non-network printer A network Once you have all of these th ...more

If you're worried about the security of your Mac, there are easy measures to prevent the most dangerous attacks. Named after the tactic of accessing an unattended computer in a hotel room, we can thwart "evil maid" attacks with Do Not Disturb and LuLu, free macOS tools by Obje ...more

Virtual private networks, or VPNs, are popular for helping you stay anonymous online by changing your IP address, encrypting traffic, and hiding your location. However, common IoT devices, media players, and smart TVs are hard to connect to a VPN, but we have a solution: Turn ...more

Fireworks are the best part about the Fourth of July and other celebrations, but they can easily cause accidental injuries. It's both safer and more fun to set them off remotely, so we'll hack some standard fireworks with nichrome wire, a relay, and an Arduino to ignite remote ...more

If you want to follow Null Byte tutorials and try out Kali Linux, the Raspberry Pi is a perfect way to start. In 2018, the Raspberry Pi 3 Model B+ was released featuring a better CPU, Wi-Fi, Bluetooth, and Ethernet built in. Our recommended Kali Pi kit for beginners learning e ...more

In the previous article in this short series, we learned how to find our neighbor's name using publicly accessible information and how to monitor device activity on their home network. With this information at our disposal, it's time to get into installing and configuring the ...more

In part one of this tutorial we found out that your English teacher is a paedophile, by using a Man in the Middle attack to intercept his internet traffic. Now you're faced with the dilemma of how to alert other staff at the school to how creepy he is without letting on that ...more

Anonymity is something that doesn't exist today. Everything you do in the world is tracked, from the purchases you make to surfing the internet—even taking pictures on your iPhone. Everything you have ever said and done on the internet is still there—somewhere. This is called ...more

Smartphones and laptops are constantly sending Wi-Fi radio signals, and many of these signals can be used to track us. In this guide, we'll program a cheap IoT device in Arduino to create hundreds of fake networks with common names; This will cause nearby devices to reveal the ...more

Windows 10 is the most cloud-oriented version of Windows to date—yet, while this means you get some nifty new features, it also means some of your personal data is being shared with Microsoft's servers. Don't Miss: 45+ Tips & Tricks You Need to Know for Windows 10 In general ...more

My girlfriend was going away for a few weeks, but where she was going, there was no easily accessible Internet. She works mostly on the web, so it was imperative that she have a decent Internet connection during her travels. So, tethering her phone was the only real possibilit ...more

Wireless networks. Nowadays, everyone uses 'em, but most don't secure 'em. On average, I can drive up and down any block in my city and find at least one or two open or semi-open networks on any given day. With some changed MAC addresses for good measure, an attacker can use y ...more

Remote Desktop gives you access to your Windows 8 PC or device from wherever you are to run your applications and access your files remotely. Left an important document on your work computer? Want to run a legacy x86 desktop app from your Surface? You can use Remote Desktop ...more

Google TV gives the new Chromecast a home screen full of curated content from your various streaming subscriptions, but it's just that — a home screen app. Underneath, Google's new dongle is running Android TV, meaning its home screen is just a launcher that can be installed o ...more

When you're out and about in the dangerous world of Wi-Fi, it's hard for the average computer user to stay protected, or even know what being protected entails. Little do most people know, Windows 7 has a built-in security that few people take advantage of: a VPN (Virtual Priv ...more

Giving up your Wi-Fi password can be giving up more control than you think. Because of the way Chromecast and other IoT devices communicate, anyone on the same Wi-Fi network as your device can often make it do whatever they want. With a script called "Cast All the Things," we ...more

Android comprises an entire ecosystem of apps, games, functions, and features, so it would only make sense that it has its own lexicon. Words, phrases, and acronyms that didn't exist ten years ago are now used in an off-the-cuff style by developers and support technicians acro ...more

Apple's Gatekeeper security software for macOS (Mac OS X) is vulnerable to remote attacks up to version 10.14.5. An attacker that's anywhere in the world can exploit MacBooks and other Mac computers by sharing a single ZIP file. The vulnerability was discovered by Filippo Cav ...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

The tactic of brute-forcing a login, i.e., trying many passwords very quickly until the correct one is discovered, can be easy for services like SSH or Telnet. For something like a website login page, we must identify different elements of the page first. Thanks to a Python to ...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

Sharing a laptop's wireless Internet connection with other computers connected to its Ethernet port is a great skill to know. It can be good for a number of reasons; Your computer may not have proper hardware to have a standard setup, or you may have an awkward network topolog ...more

I've seen numerous tutorials on how to create a "strong" password. This makes me laugh. These titles imply "one" password, which is wrong in and of itself. A person should have many passwords, all different, and all extremely long. People may ask how they're supposed to rememb ...more

Firewall is necessary to protect a computer network from hostile intrusions. You can easily setup your Firewall setting. This video helps you to do it. Video: .

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

These days, if you're having friends over, they'll probably ask to log into your Wi-Fi network before asking for a drink. But if you've forgotten your password, it can be quite hard to find, since most devices obscure the characters with asterisks. But it honestly doesn't tak ...more

Most newer computers come with a webcam, but if you're using an older system, you may not have one. If you only need to use a webcam occasionally, it may not be worth putting the money into, so why not just use your smartphone? There are a few apps out there that can help you ...more

With an ordinary birthday card, we can introduce a physical device which contains malicious files into someone's home and deceive them into inserting the device into a computer. In my last series, we used a Post-it note to trick a neighbor into visiting a website that we cont ...more

Almost every phone comes with biometric security of some sort these days, but the same can't be said of Windows computers. While fingerprint scanners are becoming increasingly common with laptops and desktops, they're nowhere near ubiquitous. Thankfully, your phone's scanner c ...more

Welcome back, my novice hackers! Previously in my "Spy on Anyone" series, we used our hacking skills to turn a target's computer system into a bug to record conversations and found and downloaded confidential documents on someone's computer. In this tutorial, I will show you ...more

Social engineering is a pretty important item in a hacker's toolkit. In Mr robot there was a time, we saw Elliot using social engineering to gain access to his therapist's boyfriend's email and bank accounts by calling him and pretending to be someone from his bank, then Elli ...more

With a simple social engineering trick, sudo passwords can be captured in seconds without the target's knowledge. The passwords can then be saved to a file or exfiltrated to another computer on the network. After exploiting a system, penetration tester's and hackers will ofte ...more

Have you ever used an open wifi, which after you connect displays a website to enter your credentials to get internet? That website is called captive portal and widely used in airports, hotels, universities etc. Have you ever wondered what would happen if someone would set up ...more

Beginners learning brute-forcing attacks against WPA handshakes are often let down by the limitations of default wordlists like RockYou based on stolen passwords. The science of brute-forcing goes beyond using these default lists, allowing us to be more efficient by making cus ...more

While Windows 10 is still a few weeks away from a public release, that doesn't mean you can't enjoy its brand new features right now. Anyone with an Insider Preview account can install Windows 10 on their computer. And that doesn't just go for those that own a Windows PC—Mac u ...more

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 ...more

There's no doubt Kali has established itself as the most popular penetration distribution available. However, just because it's the fan favorite of beginners and security researchers doesn't make it right for everyone. Manjaro Linux is a beginner-friendly Arch-based distributi ...more

In my Wireshark article, we talked a little bit about packet sniffing, but we focused more on the underlying protocols and models. Now, I'd like to dive right back into Wireshark and start stealing packets. The filtering capabilities here are very comprehensive. You can filte ...more

SSH local forwarding is a must for covering your tracks and getting out there to do your work. Also called SSH tunneling, this process will put one or more steps between your machine and the machine you're working on, for security and other purposes. It can be a bit daunting f ...more

The Pi-hole project is a popular DNS-level ad blocker, but it can be much more than that. Its DNS-level filtering can also be used as a firewall of sorts to prevent malicious websites from resolving, as well as to keep privacy-killing trackers such as Google Analytics from eve ...more

Hackers and makers are often grouped under the same label. While hackers draw on computer science skills to write programs and find bugs, makers use electrical engineering to create hardware prototypes from microprocessor boards like the Arduino. We'll exercise both sets of sk ...more

Using just a small sticky note, we can trigger a chain of events that ultimately results in complete access to someone's entire digital and personal life. Imagine arriving home one night after work and there's a Post-it note on your apartment door with the website "your-name- ...more