**IMPORTANT UPDATE**

Signal Desktop is no longer a Chrome app - it is a standalone app that you can install on Windows, Mac and Linux. For details see: https://support.signal.org/hc/en-us/articles/214507138


You're watching Infosec Bytes, a flash course in information security for journalists. We're based at the Centre for Investigative Journalism in London and supported by the Logan Foundation.

This is an introduction to Signal Private Messenger from Open Whisper Systems, a smartphone app that lets you chat and make calls with end to end encryption.

Be sure to check out our other videos on how to install and use Signal on Android (https://youtu.be/XQzhWbnop8c) and iPhone (https://youtu.be/kiX8lGJK3Ww).

Read about Signal here: https://whispersystems.org/

For scorecards and articles comparing popular secure messaging apps, please follow these links:

https://www.securemessagingapps.com/
https://www.eff.org/node/82654 (no longer current)
https://theintercept.com/2016/06/22/battle-of-the-secure-messaging-apps-how-signal-beats-whatsapp/

For information on Signal's centralized server architecture, please go here:

https://whispersystems.org/blog/the-ecosystem-is-moving/

For information on how Signal connects you with your contacts, please read this article:

https://whispersystems.org/blog/contact-discovery/

For a good briefing on general mobile phone security and privacy, read the Electronic Frontier Foundation's guide:

https://ssd.eff.org/en/module/problem-mobile-phones

To support the Center for Investigative Journalism with a donation, please visit http://tcij.org/donate.

And if you want to watch our other videos, please go to http://infosecbytes.org or subscribe to our channel below.

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Animations by Jose Passarelli

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This video could not have been made without invaluable criticism and feedback from reviewers:

Marie Gutbub
Information Security Trainer/Journalist
https://shiromarieke.github.io/

Jens Kubieziel
Security Researcher
https://kubieziel.de/blog/

Fabio Natali
Software Developer/Information Security Trainer
https://fabionatali.com/

Christian Vandrei
Privacy Activist

Dr. Richard Tynan
Technologist
https://twitter.com/richietynan

Daniel Anti-Freeze
Information Security Trainer
https://twitter.com/_anti_freeze_


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