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How To: Share Your Phone's Screen with Friends in Facebook Messenger Video Chats

Screen recording is an essential tool for sharing what's on our smartphones. If you want to send your friends and family an unsharable video you're watching, or a neat trick you discovered on your phone, recording your screen is one way to do so. Messenger, Facebook's standalone chat app, simplifies the experience by implementing live screen shares directly in video calls.

How To: Add an Emergency Medical Card to Your iPhone's Lock Screen with Important Health Information for First Responders

You can't predict the future, but you can prepare for it. On the off chance that you get hurt in a car accident, take a nasty tumble, fall down a cliff, have a seizure, or get struck by lightning, it's always good to carry up-to-date information about your health in case you can't speak for yourself. A physical medical ID wallet card or bracelet can provide the information, but so can your iPhone.

How To: Get Started with MicroPython for ESP8266 Microcontrollers

For anyone interested in using cheap, Wi-Fi-connected microcontrollers like the ESP8266, the Arduino programming language can be a barrier to entry. Based on C++, Arduino requires knowledge of more computer science than languages like Python. Fortunately for beginners, setting up MicroPython on an ESP8266 allows anyone to write Python on affordable microcontrollers in a matter of minutes.

How To: Crack WPA & WPA2 Wi-Fi Passwords with Pyrit

Pyrit is one of the most powerful WPA/WPA2 cracking tools in a hacker's arsenal, with the ability to benchmark a computer's CPU speeds, analyze capture files for crackable handshakes, and even tap into GPU password-cracking power. To demonstrate how quickly it can hack a WPA/WPA2 password, we'll use it to play a Wi-Fi hacking CTF game anyone can practice for less than $10.

How To: Catch an Internet Catfish with Grabify Tracking Links

Featured on MTV's Catfish TV series, in season 7, episode 8, Grabify is a tracking link generator that makes it easy to catch an online catfish in a lie. With the ability to identify the IP address, location, make, and model of any device that opens on a cleverly disguised tracking link, Grabify can even identify information leaked from behind a VPN.

How To: Intercept Security Camera Footage Using the New Hak5 Plunder Bug

In a previous guide, I demonstrated how to extract images from a security camera over Wi-Fi using Wireshark, provided you know the password. If you don't know the password, you can always get physical with the Hak5 Plunder Bug. Using this small LAN tap, we can intercept traffic like images from a Wi-Fi or IP security camera if we can get physical access to the Ethernet cable carrying the data.

How To: 8 Shortcuts to Improve Your Instagram Experience on Your iPhone

Instagram has extensive tools built in for creating and editing posts and Stories, but there could always be more. Third-party apps can help you add photo and video effects for even more visually stimulating content, as well as create announcements, text-based images, and everything in between. However, now that Shortcuts exists on iOS, you may no longer need all those extra apps on your iPhone.

How To: Listen to Radio Conversations on Android with an RTL-SDR Dongle & OTG Adapter

Everyone from first responders to hotel cleaning staff use radios operating in the sub-megahertz range to communicate, often without even encoding the transmission. While encoding and encryption are increasingly used in radio communication, an RTL-SDR adapter and smartphone are all it takes to start listening in on radio conversations happening around you.

How To: Calibrate the Colors of Your Pixel 2's Display with ElementalX

No matter how good a display is, the idea of perfect color calibration is subjective — some prefer warmer more saturated colors, while others prefer the calmer cooler side of the color spectrum. It is almost impossible to create a single color calibration that everyone can agree on out of the box. The display on the Pixel 2 XL was specifically calibrated with a more realistic color profile in mind.

How To: Make Your iPhone Camera Open to Your Last Used Shooting Settings So You're Always Ready

Even though your iPhone's Camera app is fast and easy to use, its default settings prevent you from immediately accessing any other shooting mode aside from "Photo" with "Live Photo" on and no filter applied. But there is a way to make the Camera app remember what you prefer the next time you open it up.

How To: The Easy Way to Use PGP for Encrypting Emails on Windows, Mac & Linux

In order to increase the security and harden the integrity of an email account and its content, you'll want to use PGP on your Windows, macOS, or Linux computer. This is usually the first thing security analysts do to protect communications with encryption, and everyone else should consider it too, especially since there's an easy way to incorporate PGP that anyone can follow.

How To: 11 Tips for Preordering an iPhone XR, XS, or XS Max Before They Sell Out

Apple's new iPhone XR, XS, and XS Max are sure to be hits this year. Of course, that means plenty of hungry customers are looking to sign up for a model once preorders begin on Friday, Sept. 14, for the XS models, and Oct. 19 for the XR. Luckily, there are preemptive actions you can take right now to avoid waiting outside an Apple Store overnight or getting kicked out of the preorder queue online.

How To: Stream Games from Your Windows PC to Your iPhone

The greatest pain in owning a high-powered gaming PC is the simple fact that you can't play it all the time. Sometimes you have work or school, and other times, you may just want to go mobile. When something like this impedes your ability to play PC games, you may end up settling for mobile games. What if, instead of doing that, you were able to play your PC games from your iPhone?

How To: Log into Your Raspberry Pi Using a USB-to-TTL Serial Cable

Connecting to your headless Raspberry Pi on the go typically requires a network connection or carrying around bulky peripheral hardware like a screen and keyboard. With the help of an old-school connecting standard, though, you can log into your Pi from any computer using a simple cable. If you don't have a power source, you can also power your Linux distro over the cable at the same time.

News: 5 Things We Learned from the Pixel 2 XL POLED Debacle

It looks like the dust is finally starting to settle on Google's POLED PR nightmare. The Pixel 2 XL — one of the most hotly-anticipated phones of the year — has been plagued by screen issues and worries. While it is certainly not without its faults, Google has created several software fixes and is offering a 2-year warranty for screen burn-in, so we can rest a bit easier about purchasing Google's latest Pixel.

How To: Exploit DDE in Microsoft Office & Defend Against DDE-Based Attacks

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 applications, we can do the same thing in Excel to create a spreadsheet that runs malicious code when opened. The best part is, it will do so without requiring macros to be enabled.

Social Engineering: How to Use Persuasion to Compromise a Human Target

Social engineering makes headlines because human behavior is often the weakest link of even well-defended targets. Automated social engineering tools can help reclusive hackers touch these techniques, but the study of how to hack human interactions in person is often ignored. Today, we will examine how to use subtle, hard to detect persuasion techniques to compromise a human target.