Hello ladies and gentlemen, PySec here coming at you with another informative(hopefully) article for you all. In the last tutorial, we finally finished our discussion about IP Addressing and I intentionally didn't mention a really important concept with which IP Addressing wouldn't be feasible without it. What I'm talking about is how our network device gets the IP Address in order to communicate with other devices on the network/Internet. There are many different ways for that to be accompli...
Welcome to a tutorial on XOR encryption. We'll be looking at what XOR is and how we can use it to encrypt or decrypt data.
For people that like to get things done, Android's home screen widgets are almost indispensable. Rather than packing your launcher with a bunch of icons, you can utilize widgets to get quick information in a beautiful package or provide one-tap access to a particular functionality within your apps.
This is my first How-To on Null-Byte, so I hope it's not too complicated written, because I am not a native english speaker. I don't use pictures, but this Tutorial is a good supplement for my updated Tutorial here.
Welcome back! In the last training session, we covered logical and membership operators. We're going to switch gears and expand our knowledge of lists.
Not many people use their phone exclusively for making calls or sending messages today. If you're an Android user, the chances are high that you're using your phone or tablet for work-related activities. However, the basic set of apps and services your device was shipped with won't satisfy most users. The good thing is that Google Play Store has a nice selection of productivity apps for every task. Below you'll find a list of apps that will help you gradually optimize and organize your digita...
I think it was 1986 when I first discovered my love for making computers say stupid things out loud. My older brother got a Commodore 64 for his birthday, which came bundled with software that would speak out any term you typed in—and boy, that computer sure made a fool of itself after my five-year-old imagination got a hold of the keyboard.
As many of you know, processor's clock frequency improvement got stuck in about 2003, causing the origin of multicore CPU (and other technologies). In this article I'll introduce you on how to run code simultaneously in various processors (I suppose that all of you have a multicore CPU). When you write code without any parallel directive, it only executes in one CPU at the same time (see it below). OpenMP make simple to work with various cores (if not with all of them) , without so much heada...
In the last iteration of how to train your python, we covered the concept of control flow and covered the booleans associated with it. Today, we'll be putting those to use as we discuss how to use if, else, and how to make conditional statements. So, Let's get started!
WPA Enterprise is widely used in large corporations as it offers individual and centralized control through a server that authenticate the users (RADIUS server). In this tutorial I will show you how to break the barrier and obtain the user credentials.
Reddit, the self-proclaimed "front page of the internet," continues to take a big bite of my free time each and every day, as well as millions of its other users'. The clicking and scrolling through page after page never gets old, but you could speed things up with a few browser extensions and double your Reddit knowledge in half the time. Here are my favorite extensions you can try out for the Chrome, Firefox, and Safari web browsers.
As we're all aware, recon is vital to a successful hack. We need to know everything we can about the target in order to perform the best possible attack. Port scanning is a basic recon concept that is introduced very early in learning proper reconnoissance. The issue with port scanning is that is makes a lot of noise. Every connection to every port will be logged. This is where stealth scanning comes in. Also known as SYN or half-open scanning, stealth port scanning is a bit quieter, and is l...
Welcome to the first chapter of Excel is Simple, a place where we will burst all myths around excel and try to make it simpler and fun to use.
There's a never-ending selection of app launchers that want a permanent spot on your Android device. While some keep the stock-Android look with beefed-up versions of Google's launcher, Blur is relatively new on the scene, with a unique approach to app management that sets it apart.
Security is a priority for many when they first set up their mobile devices. Nobody wants to have a stranger or nosey friend go through their phone and discover risqué photos or embarrassing text messages. These days, the closet is gone—everyone keeps their skeletons in their phones.
It's the biggest day of the year for all things Google. Their developer conference, dubbed Google I/O, gives us a peak at what the guys at Mountain View have been working on over the course of the past year, and this year, Android was center stage.
Safari has some cool new features in iOS 8, but the app that seems to have gotten the biggest update so far is Messages. A lot of the new Messages features were discussed during Apple's developers conference, but we found many others and picked out our favorite hidden ones below.
Like Costco's price codes or the tags on your bread, the numerical codes printed on those sticky little fruit and vegetable labels can reveal a lot of information to us consumers. Once you understand the codes, you can look at that little label (also known as PLU, or "price look up" label) and know whether the produce you're about to buy or eat was treated with pesticides, genetically modified, both, or neither. Before we go any further with deciphering the codes on these labels, let's take a...
Phantom phone vibrations. You might feel them in the pocket of your jeans, or when your handbag is on your shoulder—even when you're holding your phone in your hand. When you do, you immediately wake it up to see who texted or what app just had an update—but there are no alerts.
In today's dog-eat-dog world, every minute matters. Whether you're in school or working for the Man, a huge amount of your day is consumed by tasks, assignments, and other kinds of work. Then there's the time you spend playing video games, watching TV, or screwing around on your Samsung Galaxy S3.
Recently, there have been some questions regarding networking popping up and we have decided to put together this series to try and cover this gap.
For my money, one of the greatest improvements brought about from the smartphone revolution is the advent of visual voicemail. No longer do we have to slog through dial menus or trudge through every single message to get to the next. We can just look at our messages, right there on our screens, organized neatly like emails or text messages.
Welcome back, my aspiring hackers! One of those areas of Linux that Windows users invariably struggle with is the concept of "mounting" devices and drives. In the Windows world, drives and devices are automatically "mounted" without any user effort or knowledge. Well, maybe a bit of knowledge. Most Windows users know to unmount their flash drive before removing it, but they usually think of it as "ejecting" it.
Like many other smartphones these days, your Samsung Galaxy S4 is built to handle multitasking like a pro. With a 1.9 GHz processor and 2 GB of RAM (specs comparable to laptop computers just a few years ago), this powerhouse of a phone can switch between apps with supreme ease.
WhatsApp is one of the most well-known and most utilized cross-platform chat applications available today. It's free for one year, and only $0.99 a year after, which is chump change when you realize there are no hidden costs like international charges. Basically, it creates an easy to use forum for you and your friends to chat, regardless if they're an Android or iPhone user.
Welcome back, my fledgling hackers! It's been awhile since we did a Metasploit tutorial, and several of you have pleaded with me for more. I couldn't be happier to oblige, as it's my favorite tool. For the next several weeks, I'll intersperse some new guides that'll help expand your Metasploit skills and keep you abreast of new developments in Metasploit, so look for them in the near future.
Welcome back, my nascent hackers! Earlier, I wrote a guide on finding operating system and application vulnerabilities in Microsoft's own security bulletins/vulnerability database. In this tutorial, I will demonstrate another invaluable resource for finding vulnerabilities and exploits by using the SecurityFocus database.
MAC addresses (not to be confused with Macs) are unique identifiers assigned to network devices in order to access the internet. Hotels use these Mac addresses in order to check if a registered patron has agreed to their terms and conditions, how much bandwidth is being consumed, and of course, whether they've paid or not.
There are more actions available for the Action button, but only a handful of iPhone models have that button. However, there is another button with new features you can use, and you can access all the fresh features on any iPhone model that can run iOS 18.
Wireless emergency alerts help warn mobile phone users of imminent threats to life or property, such as extreme weather and natural disasters. These alerts target affected geographic areas and come with a loud sound scary enough to make you want to turn off emergency alerts altogether on your iPhone, but there's a way to keep emergency alerts without the ear-splitting, intrusive sound.
Night Shift, Dark Mode, Reduce White Point, and Zoom's Low Light Filter all help reduce the harmful effects on your body's clock that bright iPhone and iPad screens have at night. But there's another option on iOS and iPadOS that turns your entire display red, and it's useful for so much more than just late-night browsing in bed.
If you use the Apple TV Remote found in your iPhone's Control Center, there's a hidden surprise you'll like on iOS 16 and later — one that lets you use the remote without ever having to open Control Center.
While Apple introduced new AR features for iOS 15 and Object Capture for Reality Kit 2 during the WWDC 2021 keynote, updates for ARKit were curiously absent in the official presentation.
The concept of Metaverse, otherwise referred to as AR cloud, where a digital twin of the real world filled with virtual content anchored persistently for all to see, has been a sci-fi dream of futurists for years and an aim for most tech companies who are serious about AR.
Since iOS 11, a thumbnail preview appears on your iPhone whenever you take a screenshot. It's useful for access to quick sharing options and editing tools, but you can't disable the preview image. You can wait for it to disappear or swipe it off-screen, but that's as good as it gets — until now. In an iOS 14 update, there's an option to disable the screenshot preview — only you won't find it in Settings.
You use your iPhone's Reminders app to keep track of everything from grocery lists to the day's most important tasks. Over recent iOS updates, Apple has added tools to Reminders to make it even more powerful, like assigning tasks to other people and setting location-based reminders. Now there's another great update, and it gives you the ability to sort your lists.
While most established media brands are satisfied with copying Pokémon GO to jump into augmented reality gaming, at least one property is taking a slightly different approach.
In recent weeks, Google managed to capitalize on the hype surrounding the Star Wars streaming series The Mandalorian with an AR app that was not only exclusive to Android but also available only for 5G-equipped devices.
You're in the middle of the fight for your life in your favorite iPhone game when all of a sudden, that critical move you tried to make activates Control Center inadvertently, throwing you completely off track. Instead of fuming, do something about it — block Control Center when you're in apps.
They say you're supposed to keep your kids away from screens until they're at least three years old. They say a lot of stuff, but then real life happens and your toddler watches a little TV while you're working from home during a pandemic.
