Fix Code P0401

Electronic warfare tactics work by jamming, disrupting, or disabling the technology a target uses to perform a critical function, and IoT devices are especially vulnerable to attacks. Wireless security cameras like the Nest Cam are frequently used to secure critical locations, ...more

While there isn't as much personal data residing on your Apple Watch as there is on your iPhone, it's still a good idea to set a passcode for it and lock it up when you're not using it. If you don't, while it's charging or otherwise off your wrist, others may be able to sneak ...more

With the macOS stager created and the attacker's system hosting the Empire listener, the malicious AppleScript can be designed and disguised to appear as a legitimate PDF using a few Unicode and icon manipulation tricks. A real PDF is required for the attack to work. Files ov ...more

Single sign-on (SSO) lets users login across different sites without having to manage multiple accounts. I'm sure most of us appreciate the convenience of seeing "Sign in with …" buttons that let us login with a single username. Hackers, however, see a possible avenue for expl ...more

Hackers often rely on lazy system admins and unpatched vulnerabilities to get access to a host. Keeping intruders off of our machines requires us to update daily, only run the services we need, and read the code, among other things, but we can still make mistakes. Luckily for ...more

When OnePlus announced the 5T, many were disappointed that it wasn't shipping with Android Oreo. To curb some of this disappointment, OnePlus quickly introduced an open beta for both the 5 and 5T and promised that each would receive the official version by Q1 2018. Well today, ...more

Many guides on Null Byte require using the Secure Shell (SSH) to connect to a remote server. Unfortunately for beginners, learning to use SSH can become a confusing mix of third-party programs and native OS support. For Chrome OS users, using SSH is even more difficult. We'll ...more

There are more than 2 billion Android devices active each month, any of which can be hacked with the use of a remote administration tool, more commonly known as a RAT. AhMyth, one of these powerful tools, can help outsiders monitor a device's location, see SMS messages, take c ...more

In our previous article, we learned how to take advantage of a feature, Dynamic Data Exchange (DDE), to run malicious code when an MS Word document is opened. Because Microsoft built DDE into all of its Office products as a way to transfer data one time or continuously between ...more

Google just released the second developer preview of the Android 8.1 update for Nexus and Pixel devices, and even though it's just a point-one release, there are lots of cool changes. Before you run off to join the Android beta program and try the new version, it's worth readi ...more

In the previous section of this series on dynamic user interfaces for HoloLens, we learned about delegates and events. At the same time we used those delegates and events to not only attach our menu system to the users gaze, but also to enable and disable the menu based on cer ...more

In this chapter, we want to start seeing some real progress in our dynamic user interface. To do that, we will have our newly crafted toolset from the previous chapter appear where we are looking when we are looking at an object. To accomplish this we will be using a very usef ...more

When making a convincing mixed reality experience, audio consideration is a must. Great audio can transport the HoloLens wearer to another place or time, help navigate 3D interfaces, or blur the lines of what is real and what is a hologram. Using a location-based trigger (hots ...more

Welcome finally, to a tutorial on buffer overflows! At last we have reached an exciting part of this series where I will dedicate the entire article on explaining and exploiting the notorious vulnerability. Grab some popcorn, sit back and enjoy the show. What Is a Buffer Over ...more

It would only make sense that Google is one of the most active app developers on the Android platform, particularly when you consider that they develop the platform itself. From my count, there are an astounding 117 unique apps that the search giant and its subsidiaries have p ...more

This is a short explanation and tutorial on how to grab saved passwords from Google Chrome, ideally from a meterpreter session. The idea behind this is to understand how saved passwords work and how to keep them safe. Let's have some fun :D Understanding Google Chrome Saved Pa ...more

Welcome to the sequel to the latest post on writing 64 bit shellcode! This tutorial will assume that you are aware of everything mentioned in the last one, as I will try to make this tutorial void of formalities and straight to the point! If you have not read the last one, I s ...more

Apple pushed out the Release Candidate for iOS 14.6 on Monday, May 17. The 18F71 build includes new features and bug fixes, including an option to unlock your iPhone with Voice Control. It comes just hours after Apple announced Spacial Audio and Lossless Audio playback for App ...more

The iOS 14.4 developer beta was pushed out a day ago, and now the iOS 14.4 public beta is out and ready for your iPhone. At first glance, there's not much to look at in the new beta release, and it's not yet known if it lays out the groundwork for missing features such as 5G d ...more

The next big phase of iOS 14 has started with the release of the iOS 14.4 beta. Right now, the developer-only beta features only one known item. Apple introduced the ability to scan App Clip Codes in iOS 14.3 with the Code Scanner control, and now in iOS 14.4, you can launch a ...more

It should be simple to select and copy all text on a webpage in Safari, but it won't work as it does in other apps. Usually, you can press-and-hold down anywhere on a page and choose "Select All" from the edit menu, but that functionality is disabled in Safari and WebKit-based ...more

The gesture navigation introduced with Android 10 worked wonders by giving you more of your screen and less tapping. Android 11 offers the option to fine-tune the back gesture sensitivity for your screen's left and right sides. However, the issue still stands for people who li ...more

Let's say that the screen on your iPhone is showing signs of discoloration, which makes the display annoying to use. You'll need a replacement display or a new iPhone as soon as possible. If you have one of the newer iPhone models, the cost to fix it might be more than your wa ...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

The "Zoombombing" trend is still strong on the Zoom video meetings service, despite security measures Zoom put in place to stop it. That's why it's up to you, as either a host or co-host, to be proactive about preventing Zoombomber harassment, as well as stopping it whenever i ...more

The Digispark is a low-cost USB development board that's programmable in Arduino and capable of posing as a keyboard, allowing it to deliver a number of payloads. For only a few dollars, we can use the Digispark to deliver a payload to a macOS computer that will track the Mac ...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

The $35 Raspberry Pi is an amazingly useful single-board computer (SBC) with a good balance of price, performance, and connectivity options. But for some projects, it just isn't enough. Whether you need more computing power, a smaller size, or better machine-learning capabilit ...more

Comparing the present-day states of the consumer and enterprise sectors of augmented reality is like evaluating the merits of sports car versus work trucks. Like consumer AR, sports cars are sexy and exciting, but perhaps a bit impractical at times. On the other hand, enterpri ...more

Android's settings menu is actually pretty daunting. There are options for nearly everything, so in the sea of various menus and submenus, it's easy to overlook important privacy and security settings. On Google's Pixel phones in particular, there are 20 such settings that you ...more

Computers all over the world rely on a program called "libssh" to use the SSH communications protocol, which allows trusted users to log in and administer computers remotely. Due to a flaw in libssh, fooling a computer into granting SSH access is as easy as telling it you alre ...more

MoviePass was once the best subscription service on the market for getting cheap movie tickets. For the price and the number of films you could see and save money on, it was unbeatable, but recent changes to the service have made it less enticing. While it still works well for ...more

Rooting. As an Android user, I'm sure you've heard the word once or twice. According to Kaspersky, 7.6% of all Android users root — but for the 92.4% who don't, we wanted to talk to you. Rooting allows you to remove barriers and open Android to a level of unprecedented contro ...more

So, you rooted your Pixel 2 or 2 XL and everything seems to be working quite well. However, a month passes, and you get a notification to install the monthly security update. Like clockwork, Google has been pushing out OTA security patches every single month for a while, but t ...more

Think back to when you last wanted to transfer some music or videos to your friend's smartphone and how difficult and slow it was. As powerful as our phones are, the default file sharing options are limited. There are, fortunately, some better options which make moving files e ...more

Wi-Fi devices are continually emitting "probe frames," calling out for nearby Wi-Fi networks to connect to. Beyond being a privacy risk, probe frames can also be used to track or take over the data connection of nearby devices. We'll explain how to see nearby devices emitting ...more

Wi-Fi tools keep getting more and more accessible to beginners, and the LAZY script is a framework of serious penetration tools that can be explored easily from within it. This powerful and simple tool can be used for everything from installing new add-ons to grabbing a WPA ha ...more

Developers creating login systems know better than to store passwords in plain text, usually storing hashes of a password to prevent storing the credentials in a way a hacker could steal. Due to the way hashes work, not all are created equal. Some are more vulnerable than othe ...more

Hacking Wi-Fi is a lot easier than most people think, but the ways of doing so are clustered around a few common techniques most hackers use. With a few simple actions, the average user can go a long way toward defending against the five most common methods of Wi-Fi hacking, w ...more

The iOS App Store is a big place, offering over two million applications in total. However, there are actually some apps you can and should install on your iPhone that the iOS App Store doesn't include. And no, these apps do not require any difficult jailbreaking or complicate ...more

As a developer, before you can make augmented-reality robots that move around in the real world, controlled by a user's finger, you first need to learn how to harness the basics of designing AR software for a touchscreen interface. In recent years, the vernacular for referrin ...more

During our last adventure into the realm of format string exploitation, we learned how we can manipulate format specifiers to rewrite a program's memory with an arbitrary value. While that's all well and good, arbitrary values are boring. We want to gain full control over the ...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

The Play Store hasn't been the most secure place for apps lately. A quick Google search for "Play Store malware" will give you a taste of some of the malicious apps that snuck their way onto Android's official app store. Google is aware of the problem and they're tying to fix ...more

The public leaks of NSA tools and information have led to the release of previously secret zero-day exploits such as EternalBlue, which was used in the notorious WannaCry ransomware attack. Despite multiple patches being released, many users have failed to update their systems ...more

Armis Labs has revealed eight vulnerabilities, called "BlueBorne", which put 5.3 billion Android, iOS, Windows, and Linux devices that use Bluetooth at risk. With it, hackers can control devices, access data, and spread malware to other vulnerable devices through networks. In ...more

Surveillance is always a useful tool in a hacker's arsenal, whether deployed offensively or defensively. Watching targets yourself isn't always practical, and traditional surveillance camera systems can be costly, lacking in capabilities, or both. Today, we will use motionEyeO ...more

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

Welcome back Hackers\Newbies! Hey guys first of all I would like to explain my absence here in NullByte. I got a little "occupied" with "other things". When I got back, I saw all these HowTo's, articles, Help Questions, I decided, I need to share more of what I have, to you g ...more

There is much to be learned about Apple Music and the revamped Music application introduced in iOS 8.4. Throwing their hat into an already competitive field with other companies like Spotify, Tidal, or Rdio, this is a bold move on Apple's part. So, before you consider signing ...more

A vending machine is an invaluable yet totally frustrating piece of equipment. It's a godsend whenever your tummy's growling or you need an ice-cold drink on a hot summer day. But when something gets stuck inside or the machine flat-out malfunctions, it quickly becomes your ar ...more

As the U.S. inches closer to herd immunity and reopening after the pandemic, it may become necessary to keep your COVID-19 vaccination cards on you at all times to gain access to places and events that are prone to spreading the coronavirus. You probably won't want to lose you ...more

The rapid advance of Lens Studio as a platform for easily developing augmented reality experiences is just one indicator that immersive computing is becoming the norm. But one layer above the technology tools are the users, the real stars of any platform. Without passionate u ...more

Buckle up, iPhone users, because it's update time! Apple just released its latest iPhone OS to the public, iOS 14.4. This new edition isn't the company's most ground-breaking, but it doesn't come up short, either — you'll find support for smaller QR codes in Camera, a new "Dev ...more

While there are completely legitimate reasons to use Bitcoin, it's also used by terrorists, drug dealers, and other shady people that need to be investigated. That's where SpiderFoot comes in, which has a command-line interface to search for Bitcoin wallet addresses on a websi ...more

You have an assignment due, whether it's homework for school or a project for work, but you've only got a few hours left. There's no way you're going to finish in time and do a good job, and you don't want to turn in anything incomplete or half-assed. While it may seem you're ...more

Apple just released the eighth public beta for iOS 14 today, Wednesday, Sept. 9. At this time, beta 8 (18A5373a) seems to be a minor update to iOS 14, introducing bug fixes to improve the software's overall stability. So far, there haven't been many new user-facing features o ...more