Preval's Communications Search Results

Guide: Wi-Fi Cards and Chipsets

Greetings aspiring hackers. I have observed an increasing number of questions, both here on Null-Byte and on other forums, regarding the decision of which USB wireless network adapter to pick from when performing Wi-Fi hacks. So in today's guide I will be tackling this dilemma. First I will explain the ideal requirements, then I will cover chipsets, and lastly I will talk about examples of wireless cards and my personal recommendations. Without further ado, let's cut to the chase.

Cyberwar: Hacker vs. Hacker

From time immemorial, human beings seem to be at odds with one another. When these differences become so heated and unresolvable, it eventually erodes into physical violence. This violence has manifested into some of the most horrific exercises in human history, things which every school child is aware of and none of which we have to recount here. Although humans have been cruel and violent for a very long time, the 20th century may have epitomized that behavior. With two World Wars and many,...

News: What to Expect from Null Byte in 2015

Welcome back, my greenhorn hackers, and happy New Year! Now that your heads have recovered from your New Year's Eve regaling, I'd like to grab your attention for just a moment to preview 2015 here at Null Byte. I hope you will add your comments as to what you would like to see, and I'll try to honor as many requests as I can.

How To: Get the Most Out of Google's New Inbox by Gmail

Google's new Inbox by Gmail service wants to fundamentally change the way you handle email, so a bit of a learning curve is to be expected when you're first using the utility. As of right now, the service is invite-only, but if you were lucky enough to get in on the ground floor, you're probably wondering, "How the heck do I use this thing?"

How To: Print Out These Emoji Cutouts for the Easiest Halloween Costume Ever

Emojis have transformed the way we laugh and cry, tell stories, give responses, and express excitement to get a drink after work — without any actual text required. Heck, in an incredibly meta move, the Oxford Dictionary even named the "Face with Tears of Joy" emoji as their word of the year at one point. So how could you not want to be an emoji character for Halloween? Emojis are everywhere. The ubiquitous symbols are already on smartphones, tablets, and social networks, so why not help them...

How To: Beam Any File You Want from Your Nexus 5 to Another Android Device

Your Nexus 5 comes with a pretty cool feature baked in called Android Beam. Using NFC, or Near Field Communication, this functionality allows you to send information to another compatible device by simply touching the two together. Most flagship devices have NFC built into them these days, so there is a broad range of devices that your Nexus 5 is capable of sharing information with wirelessly.

News: Everything You Need to Know About the New Samsung Galaxy S5

The Samsung Galaxy S5 was just officially announced at Mobile World Congress. The new flagship device will be available worldwide beginning April 11, 2014, including all major U.S. and international carriers. With over 200 million Galaxy devices sold to date, the S5 doesn't stray too far from the trend, at least not aesthetically. We've still got a high-grade plastic shell with perforated back covers, and four color choices at launch. Our highlights of the release event are as follows.

Hack Like a Pro: How to Create a Nearly Undetectable Backdoor with Cryptcat

Welcome back, my fledgling hackers! Awhile back, I demonstrated one of my favorite little tools, netcat, which enables us to create a connection between any two machines and transfer files or spawn a command shell for "owning" the system. Despite the beauty and elegance of this little tool, it has one major drawback—the transfers between the computers can be detected by security devices such as firewalls and an intrusion detection system (IDS).

Hacker Fundamentals: A Tale of Two Standards

If you read my article on the OSI model, you got a good overview on communications from that model's perspective, but how does that relate to TCP/IP? We're going to take it a step further, getting into the idea behind the two address concept. How does an IP address and a MAC address work together? If you want to hijack sessions and all sorts of lulz like that, you need to understand these concepts. Let's get into it, mates!

How To: Give a speech

Giving a speech in front of a large crowd doesn't need to be the nightmare everyone imagines it to be. We speak to many people every day and yet it is still very common for a person to be nervous when delivering information in front of several people. This fear can be overcome by practicing how to give a speech and being prepared.

How To: Give a funny speech

Would you like to be able to stand up at that next meeting or party and get your audience laughing? Learn how to give a funny speech from professional public speaker and communications instructor Tracy Goodwin in this free video series.

Hands-On: Hands-On with Magic Leap's Avatar Chat, Remote Virtual Meetings in AR Have Arrived

Unlike the realm of virtual reality, augmented reality is less about losing yourself in some fantasy environment, and more about getting things done in the real world. So while we've seen some great games that capture the imagination on devices like the Magic Leap One and the HoloLens, when it comes to real-world usage, the biggest developments coming for AR apps that are the more practical ones.

How To: Use Your iPhone's Mail App to Send and Receive End-to-End Encrypted Emails in Gmail

Gmail uses TLS, or Transport Layer Security, by default for all email communications, so all of your emails will use the standard encryption as long as the recipients also support TLS. But there's a way to add even more security to your Gmail emails, and you can use your iPhone's Mail app to do it.