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Robot Basics: Using an H Bridge to Move Your Bot Backwards

I love robots. They have the potential to evolve into Asimovian destroyers of the human species, but have only just mastered the art of cleaning my rug. They have an ever increasing cool factor and a growing number of cheap and simple components that let the hobby roboticist reach for the burning miasmas of plasma. But to get to the stars, we need to start with the basics.

News: Apple Releases iOS 14.4 for iPhone, Featuring New Apple Watch Face & Updates to Camera, Bluetooth & Privacy

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 "Device Type" setting in Bluetooth, support for a new Apple Watch face, and a major privacy feature, among other new changes.

How To: Code a Dead Man's Switch in Python 3 to Encrypt & Delete Files Whenever You Don't Check In

A dead man's switch is a fairly simple concept. If you don't perform a specific task before a set amount of time, it'll perform a specific action you set. They can be handy not just for hackers but for everyone who wants to protect themselves, someone else, or something tangible or intangible from harm. While there are more nefarious uses for a dead man's switch, white hats can put one to good use.

How To: Use Linux Smart Enumeration to Discover Paths to Privesc

Privilege escalation is the technique used to exploit certain flaws to obtain elevated permissions relative to the current user. There are a vast number of methods out there to go from user to root on Linux, and keeping track of them all can be difficult. This is where automation comes into play, and a privilege escalation script called Linux Smart Enumeration is one to take advantage of.

How To: Fuzz Parameters, Directories & More with Ffuf

The art of fuzzing is a vital skill for any penetration tester or hacker to possess. The faster you fuzz, and the more efficiently you are at doing it, the closer you come to achieving your goal, whether that means finding a valid bug or discovering an initial attack vector. A tool called ffuf comes in handy to help speed things along and fuzz for parameters, directors, and more.

How To: Expand Your Analytical & Payload-Building Skill Set with This In-Depth Excel Training

It's nearly impossible not to be at least somewhat familiar with Microsoft Excel. While it's needed for many office jobs and data analysis fields, hackers could also benefit from improving their spreadsheet skills. Many white hats already know some of the essential Excel hacks, such as cracking password-protected spreadsheets, but there's so much more to know from an attack standpoint.

How To: Program MicroPython NeoPixel Holiday Lights to Animate However You Want

Individually addressable LEDs, also commonly called "NeoPixels" after the popular Adafruit product, are a bright and colorful way to get started with basic Python programming. With an inexpensive ESP8266 or ESP32 microcontroller, it's easy to get started programming your own holiday lighting animations on a string of NeoPixels with beginner-friendly MicroPython!

How To: Find Passwords in Exposed Log Files with Google Dorks

You may not have thought of dorks as powerful, but with the right dorks, you can hack devices just by Googling the password to log in. Because Google is fantastic at indexing everything connected to the internet, it's possible to find files that are exposed accidentally and contain critical information for anyone to see.

News: Apple's iOS 12.4.1 for iPhone Fixes Jailbreak Vulnerability, 12.4.2 Patches Other Security Issue

While all eyes might be on the next beta release for iOS 13, Apple is still pumping out updates for iOS 12. The company released iOS 12.4.1, the first update since iOS 12.4, on Aug. 26. The latest update includes a patch for the jailbreak vulnerability recently discovered in 12.4. One month later, on Sept. 26, iOS 12.4.2 came out for older iPhone models.

How To: Disable iOS 12's Annoying Password Creation Feature on Your iPhone

Maybe you prefer writing passwords in a notebook. Maybe you like creating your passwords yourself. Whatever the case, you don't like iOS 12's new automatic password generator, and you don't need it to pop up every time you enter a new password in Safari or a third-party app. Lucky for you, iOS 12 lets you disable the feature altogether. Unfortunately, that perk comes with a catch.

How to Hack Wi-Fi: Disabling Security Cameras on Any Wireless Network with Aireplay-Ng

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, but a hacker can surgically disable a webcam or other Wi-Fi connected device without disturbing the rest of the network.

Exploit Development: How to Manipulate Code Execution with the Instruction Pointer

The one thing that separates a script kiddy from a legitimate hacker or security professional is the ability to program. Script kiddies use other people's tools, while hackers and security pros write their own tools. To that end, we're going to see how a stack overflow vulnerability allows us to flood a variable with enough input to overwrite the instruction pointer with our own commands.

How To: Find Anyone's Private Phone Number Using Facebook

Facebook really wants your phone number, nagging you for one as soon as you join. This isn't all bad since it can help secure your account with two-factor authentication. On the flipside, this makes it easy to reveal the private phone numbers of virtually anyone on Facebook, including celebrities and politicians. We're going to look at how a hacker would do this and how to protect yourself.