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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: Easily Change Your Phone's Font Without Tripping SafetyNet

You can easily deck out your favorite phone with great wallpapers, ringtones, and icons, but what about fonts? Not all Android skins let you change the system font, and even when they do, the options are often limited to a few choices. Certain root apps can open up the system font to customization, but some of these can cause problems now that Google introduced a security measure called SafetyNet.

How To: Fix the 'Number Changed to Primary' Bug on Your iPhone

The iPhone XS, XS Max, and XR aren't the newest devices from Apple Inc., but all three have a serious problem in Messages. When sending a friend an SMS/MMS text rather than an iMessage, the phrase "Number changed to Primary" appears in front of every message. What gives? If this issue is driving you mad, there are a few tricks that may exterminate the bug until Apple gets around to issuing a patch.

How To: This Shortcut Lets You Download YouTube Videos on Your iPhone Straight from the Source, No Shady Services Needed

If you've ever wanted to download YouTube videos directly to your iPhone, there's an easy solution — just update to iOS 12 and install Apple's new Shortcuts app. With the Workflow-replacement app, you can add a shortcut that lets you download any YouTube video you want, without needing to jailbreak or use shady third-party tools.

How To: Transfer Your Authy Account to a New Phone

One of the main reasons Authy was able to top our list of the best two-factor authentications apps was its ability to transfer access to a new device. This feature ensures that whenever you get a new phone, you don't lose all your tokens. However, if the process is done incorrectly, you can leave your account vulnerable.

How To: Find & Change Weak Reused Passwords to Stronger Ones More Easily in iOS 12

The option to auto-fill passwords on your iPhone has been around a while now, but iOS 12 improves on it by suggesting strong passwords when first creating an account online in Safari or within apps. Apple has also added "password reuse auditing" for your iCloud Keychain, where all your logins are housed, which will find and change your weak passwords to strong ones.

News: 30+ Privacy & Security Settings in iOS 12 You Should Check Right Now

There's always an iPhone in our list of top phones for privacy and security, due in large part to advanced security measures like Face ID, consistent iOS updates, and easy ways to prevent unwanted access and excessive data sharing. However, some of those options actually do the opposite and hinder security. It all depends on how you use your iPhone, but you should at least know everything available.

How To: Get iOS 12's Quick QR Scanner on Android

When you hear people say the iPhone "just works," it's because of all the finishing touches Apple adds to iOS. A perfect example of this is the new QR-scanning feature in iOS 12 — by tapping a single button in the iPhone's Control Center, you can scan a QR code within seconds.

How To: Attend Defcon Without Looking Like a Noob or Spending a Fortune

Defcon is the largest hacker conference with something for everyone, whether it be the talks, parties, villages, or any of the hundreds of events. In this guide, we'll take a holistic view at everything that goes into attending the con for the first time, from securing your electronics and making the most of your time to the logistics of getting there and finding the right place to stay.

How To: Customize Navigation Prompts on Apple Maps for Clearer Spoken Directions

When it comes to traveling from one location to another with the aide of your iPhone, ensuring your navigation app works as it should keeps you one step ahead of potential hassles. One feature often overlooked is audio settings, and while having no voice prompts is easy enough to ignore while walking or commuting, having no sound to guide you while driving can spell disaster.

How To: Run Kali Linux as a Windows Subsystem

Kali Linux is known as being the de facto penetration-testing Linux distribution but can be a pain to use as an everyday OS — even more of a pain if that means carrying around a second laptop or the constant frustration of using the finicky Wi-Fi on virtual machines. But there's another option: installing a Kali subsystem on your Windows computer as a convenient compromise.

How To: Make an Anonymous Facebook Profile to Keep Your Personal Data Private

Between the Cambridge Analytica scandal and the revelation that Facebook logs your calls and text history on Android, many are considering joining the #DeleteFacebook movement. But it can be difficult to leave the site, because so much of its content is only available to active users. If you want to keep in the loop without sacrificing your privacy, you'll want to follow the steps below.

Snapchat 101: 6 Privacy Settings You Need to Check on Android & iPhone

Since starting as a simple messenger with self-destructing pictures, Snapchat has grown into a full-fledged social media platform. As features were added, new permissions were requested, and we're all probably guilty of just tapping "OK" to try out the latest and greatest. But at some point, it's a good idea to review your settings to see what personal data you're putting out there for all to see.

How To: Chat with Friends on Messenger Without a Facebook Account

For some of you, whether or not to delete Facebook is a daily struggle. One reason you might not have pulled the trigger on your Facebook account yet could be because of Messenger, which provides millions of people with different devices an easy way to communicate with each other. But here's a secret you might not know: you don't need to have a Facebook account to use Facebook's popular chat app.

News: The Galaxy S9 Is IP68 Water-Resistant — Here's What That Really Means

The day has finally arrived — Samsung has unveiled the Galaxy S9 and S9+. Apart from minor upgrades, the two might not appear to be much different from last year's S8 and S8+, but that's not necessarily a bad thing. One feature that hasn't changed is the Galaxy's IP68 water-resistance rating. That's a great score, but it begs the question — what does that number really mean?