Petrus Method Algorithms

Hello again, and welcome back to another tutorial on functions, this time, covering recursion. What Is Recursion? Recursion is the calling of a function within itself so that it repeats the process, kind of like a loop. Recursive functions are used in situations where a prob ...more

If you have some photos, videos, and documents that you want to keep completely hidden and encrypted on your Android device, Andrognito is the app you need. We showcased this app in the past, but since then, CODEX has rebuilt it from the ground up with new and improved feature ...more

Hello, multicolored-hat hackers! Today I am going to show you how to use the wordlists that come preinstalled with Kali Linux to crack those annoying hashes that contain our passwords. I'm sure that at some point in all of your lives, you have attempted to crack a password by ...more

We're living in the age of Big Data. As the primary force behind everything from targeted marketing campaigns and online search algorithms to self-driving cars and even space exploration, massive sets of complex data stand at the heart of today's most exciting and important in ...more

Just like Apple and Google, Facebook has been working to develop computer vision shortcuts designed to give mobile apps augmented reality superpowers. And while Apple's ARKit and Google's ARCore use computer vision to guess the position of horizontal and vertical surfaces, Fa ...more

The modern age of techno-dating has made an interesting landscape for social interactions when there is some modicum of romance (or lust). For those of us born before the internet evolved into the prolific monster it has become, we first met our love interests face to face. To ...more

Welcome back, my novice hackers! In a recent tutorial, I showed you how to use shikata_ga_nai to change the signature of a payload to evade detection by security devices (firewalls, IDS, etc.) and AV software. Shikata_ga_nai is an encoding module in Metasploit that XORs the ...more

In today's data-driven world, being well-versed in Big Data and analytics can help land an exciting and high-paying career. Whether you're interested in working for a major tech company or pursuing freelance work in development, you need to have a thorough understanding of the ...more

A rainbow table can be thought of like a dictionary, except instead of words and their definitions, it holds combinations of characters on one side and their hashed form on the other. What is a hash and why would you want to know what random combinations of characters are hash ...more

From ZDNet: "A group of students in China have created PhotoSketch, a project that does exactly what I just described: it takes a rough, hand-drawn sketch, scours the web for photos that match, and runs them through an algorithm, stitching it all together." Amazing! Video d ...more

Amazon Web Services (AWS) is the premier on-demand cloud computing platform. Offering a wide range of APIs to companies, governments, and individuals on a pay-as-you-go basis, this Amazon subsidiary pulled in over $35 billion in revenue in 2019 alone. Opportunities for workin ...more

So after setting everything up, creating the system, working with focus and gaze, creating our bounding box and UI elements, unlocking the menu movement, as well as jumping through hoops refactoring a few parts of the system itself, we have finally made it to the point in our ...more

The Pixel 2 is a solid upgrade when compared to the 2016 model, but we've reached a point where the latest generation of a smartphone is never leaps and bounds better than the last. It's hard to justify dropping nearly a grand on a phone when it doesn't improve your situation ...more

When a dead body is discovered, finding out when the person died is just as important as finding out how the person died. Determining the time of death has always involved lots of complicated scientific detective work and less-than-reliable methods. However, a study by Nathan ...more

Greetings my fellow aspiring hackers, Its been a long time and I have to confess I would not be around for long as I am not free yet. I just have some few hours to spare and decided to help out. I learnt OccupyTheWeb won't be around to help out anymore which is like a slap in ...more

Hello my fellow hackers, it's been a while since my last post, I can't get the time now-a-days for the posts but can manage to tend to comments. Welcome to my 9th post, this tutorial will explain how to extract and decrypt WhatsApp database from the Victim's android system. ...more

Welcome back, my rookie hackers! So many readers come to Null Byte to learn how to hack Wi-Fi networks (this is the most popular hacking area on Null Byte) that I thought I should write a "how-to" on selecting a good Wi-Fi hacking strategy. Many beginners come here looking t ...more

Apple officially announced iOS 15 at WWDC Monday, June 7. With that announcement, we got our first look at brand new features like redesigned notifications, FaceTime screen and music sharing, and Focus modes in Do Not Disturb. All of these new iPhone features are available to ...more

Hacker's are always looking for new ways to exploit systems and exfiltrate passwords, even in hashed form. Sophisticated brute-force attacks powered by high-end GPUs can perform millions of password attempts per second. But Ubuntu and Debian users aren't completely helpless. T ...more

The addition of a new research mode for Microsoft HoloLens will enable researchers and developers to tap into a wider range of data collected by the device's sensors. Available in the Windows 10 RS4 update for HoloLens, application code in Research Mode can access computer vi ...more

As smartphones become more accessible, billions of people have come to depend on their features for daily life. One of the most important aspects these days is the camera. OEMs have been working for years to improve camera quality, and they seem to have finally figured it out ...more

With mobile developers near and far primed to implement augmented reality into their iOS apps with Apple's ARKit, uSens offers them a new tool for markerless location tracking. The tracking solutions provider announced today that they have developed an inside-out positional t ...more

The Instagram Explore page is one of the most useful tools available to users. It's also one of the easiest ways to discover new content and, if you use it right, to increase your own follower count. There are a couple ways for you to dominate the Explore page. One way is to ...more

Android has several features built into the platform that improve user experience but require extra attention to prevent a security breach. By modifying these settings, you can drastically reduce the possibility of someone exploiting your device or intercepting information. B ...more

The year 2019 was filled with all the normal peaks and valleys of the tech business cycle, but this year was particularly important in a space as relatively young as the augmented reality industry. What once seemed like a vast fertile bed of mobile AR apps, powered by Apple's ...more

Ever notice how some augmented reality apps can pin specific 3D objects on the ground? Many AR games and apps can accurately plant various 3D characters and objects on the ground in such a way that, when we look down upon them, the objects appear to be entirely pinned to the g ...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

As was mentioned by the great OTW last week, TOR, aka The Onion Router, has had its integrity attacked by the NSA. In an attempt to reduce the anonymity granted by the service, the NSA has opened a great many nodes of their own. The purpose is presumably to trace the origin of ...more

Everybody knows not to store sensitive information in unencrypted files, right? PDFs and ZIP files can often contain a treasure trove of information, such as network diagrams, IP addresses, and login credentials. Sometimes, even certain files that are encrypted aren't safe fro ...more

When it comes to cybersecurity, one layer isn't enough. A complex password (or one created with a password manager) does a good job of protecting your data, but it can still be cracked. Two-factor authentication strengthens this by adding a second layer of security, giving you ...more

It's pretty much a given at this point that Facebook has a lot of data on us. While you might be conscious of the data you share with Facebook when you post, upload photos, or chat with friends on Messenger, you might not be thinking about all the data it receives from website ...more

OnePlus has always pushed the boundaries with specs. They give their phones the premium treatment, which, yes, includes the camera nowadays as well. But even though they have become pretty solid in the photography department, it could always be better. One of the tricky aspec ...more

It's a strange time for us iOS beta testers. While Apple prepares for the general release of iOS 13 on Thursday, it's also beta testing that software's successor, iOS 13.1. An iPhone updated to iOS 13 on Sept. 19 will only have 11 days before seeing 13.1 in its Software Update ...more

Apple's iOS 13 is nearly here. After four months of beta testing, the latest iPhone software update promises over 200 brand new features, like system-wide dark mode and an overhauled Reminders app. That said, it'll be shortlived, as Apple plans to release iOS 13.1 as a supplem ...more

Yesterday showed us our first look at the iPhone 11, iPhone 11 Pro, and iPhone 11 Pro Max. But it wasn't all about hardware. Apple also released the iOS 13 Golden Master, making iOS 13.1 the main focus for us beta testers. Now, Apple just seeded the third public beta, followin ...more

It's a big day for Apple. First, the company announced its new suite of phones: iPhone 11, iPhone 11 Pro, and iPhone 11 Pro Max. Then, we get the iOS 13 Golden Master, the beta version of iOS 13 that will eventually release to the general public on Sept. 19. Now, it seems the ...more

Apple has pulled quite the headscratcher in anticipation of its big iPhone unveiling next week. Its latest iPhone update, iOS 13.0, is just on the horizon, going through eight beta versions so far. And yet, before that software's official release, the company has started beta ...more

When Apple takes the stage next week, we have no idea what version of iOS it will release. For months it seemed like a given that we would, of course, see iOS 13 seeded to our iPhones. Now, we aren't sure if Apple will tout iOS 13 or iOS 13.1, since the latter is now the focus ...more

Beta testing certainly has its perks. While you do need to deal with bugs, you're introduced to new features before the general community. And if we're talking iPhones, there are over 200 new features in iOS 13 beta. If you're already on board with iOS 13 public beta 6 for iPh ...more

Many Samsung fans were excited when the Galaxy S9 kept the 3.5 mm headphone jack. While this is a rare delight in 2018, you also have the option for high quality audio playback over Bluetooth. When used with compatible headphones, the S9's new Bluetooth audio codecs can greatl ...more

Over the years, the internet has become a dangerous place. As its popularity has increased, it has attracted more hackers looking to make a quick buck. However, as our dependency on the web grows, it becomes increasingly difficult to sever all ties. This means we have to prote ...more

It seems that mobile app developers are constantly coming up with new ideas to apply augmented reality, with Apple's ARKit promising to increase adoption in apps exponentially. Recently, two developers came up with some rather unique ways to apply AR to familiar mobile applic ...more

When Android 5.0 rolls out to the Nexus 5, several changes and new features will come along with it. The over-the-air update is already rolling out, and if you don't want to wait, you can get it right now. We've pored through the massive changelog—which includes over 700 Nexu ...more

Nerds get a bad rap most of the time, but on Halloween, everyone wants to be one. However, not everyone knows how to geek it out without going too far. There is a limit, even for nerds, and these eight Halloween costumes are nerdy times pi. #1. Mozilla Firefox Costume Dressi ...more

If you thought humans were reading your résumé, think again. Robots do, and their one solitary objective is to systematically crush the hopes and dreams of those who don't make the cut. Instead of paying a few humans to read thousands of résumés over a couple weeks, many compa ...more

If you're like me, you don't have time to sit down and leisurely read an entire article from start to finish — but you still want to be informed throughout the day. Instead of just browsing the daily headlines, there's a free service that will summarize any article you throw a ...more

Now that the transfer tool for migrating your Google Play Music library to YouTube Music is rolling out, more fans of the former, which will meet its end in 2020, are giving its replacement a try. New converts will find three newer features front and center. Your Mix, Discove ...more

Apple shocked us all yesterday when it released iOS 13.1 developer beta 1. It was an unprecedented move since iOS 13.0 is still in beta testing and since Apple has never pushed out a "point" beta release before the stable base version. And now, you can get your hands on iOS 13 ...more

Apple's upcoming update for the iPhone, iOS 13, is introducing over 200 new features. Many of those were never formally announced, instead silently released in new updates to the beta. After eight developer beta cycles, we were anxiously awaiting the release of developer beta ...more

September is nearly here, which means new iPhones are, too. We're looking forward to iPhone 11 Pro and 11 Pro Max, as well as the more affordable iPhone 11R. All three iPhones will run iOS 13, so Apple's entrusting beta testers to ensure its new OS is ready. The latest update, ...more

Apple dropped the sixth public beta for iOS 13 today, Aug. 15. This public update comes just hours after the release of developer beta 7, an interesting move for Apple. The company has recently stuck to a schedule of seeding the public beta at least one day after the developer ...more

Apple's sixth iOS 13 developer beta was a welcome update for us beta testers. New options for toggling Dark Mode, a way to hide website previews when peeking links, plus UI changes made for a significant iOS 13 upgrade. We're hoping Apple continues this trend of fun and excite ...more

Life's pretty good for iOS public testers — we get to check out new iPhone features months before the general public even knows they exist. That said, we aren't first to the party. Developers get priority during beta testing, as evidenced by yesterday's iOS 13 dev beta 6 relea ...more

If tradition holds, we're roughly one month away from Apple's big iPhone announcement. While we're excited to see what will mainly be a significant camera upgrade, it's not all about the hardware. Apple will also release the official version of iOS 13 to coincide with the iPho ...more

Apple just seeded the fourth public beta for iOS 13 to software testers today, Tuesday, July 30. AppleSeed participants saw this beta one day early, alongside the release of developer beta 5. Now, developer and public testers alike are up-to-speed with the latest in iOS 13. B ...more

Beta testing for Apple's big upcoming iPhone update, iOS 13, is well underway. So far, each of the four beta versions we've seen brought new features and changes to the table, many of which were never even mentioned by Apple during WWDC in June. Now, it's time to do it all ove ...more

The wait wasn't so long this time. Apple released public beta 3 for iOS 13 on Thursday, July 18, just one day after the release of developer beta 4. For context, Apple took five days to seed public beta 2 after releasing dev beta 3, so it's a pleasant surprise that the latest ...more

We're pumped for iOS 13 and all of the fresh features and changes that come with it. Developer beta 3 came with new features in the double digits, including AR eye contact in FaceTime and mouse cursor size customization. Developer beta 4, released today, has a few more additio ...more

The third developer beta for iOS 13 has been out since July 3, and while devs have had fun exploring all the new features, those of us on the public beta have sat on the sidelines running the public version of dev beta 2. But we don't need to wait any longer, as Apple just rel ...more

On July 3, Apple pushed out iOS 13 developer beta 3 for iPhone, and there's a lot found hidden within. A new FaceTime setting, more Arcade details, full-page scrolling screenshots everywhere, a noise cancellation option in the Control Center, and a new markup tool — and that's ...more