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Future Tense is a collaboration among Arizona State University, New America, and Slate. Each month, we’ll choose a new technology and break it down. This article is part of the cybersecurity self-defense installment of Futurography, a series in which Future Tense introduces readers to the technologies that will define tomorrow. Hold your phone in front of your computer to scan. Open the Signal app on your phone and tap your profile at the top left to access the Settings.

Open the desktop app, and the first thing you’ll see is a QR code. But that’s a small sacrifice for a free app that doesn’t exploit your personal data and that keeps your communications extremely secure. How to set up Signal on Mac or Windows PC. It doesn’t have all the bells and whistles of some other messaging apps there are no stickers or photo filters. Signal supports group chat, attachments (like photos), and links. After that, your Signal messages will be synced across both platforms. On first launch, it will show you a QR code that you scan with the Signal app on your phone to connect the two devices. Now, you can launch it from the apps section of Chrome. Visit this page and click the button to install.

Once you have a version on your mobile device, you can also install it on your desktop through Google Chrome. Setup is easy-you enter your phone number, receive a verification text, enter the number, and you’re ready to go. To start using it, simply go to the app store for iPhone or from Google Play, find Signal, and install it.