Open Whisper Systems (English Wikipedia)

Kaufman, Brett Max (4 October 2016). "New Documents Reveal Government Effort to Impose Secrecy on Encryption Company" (Blog post). American Civil Liberties Union. Archived from the original on 25 July 2017. Retrieved 4 October 2016.

archive.today

"Company Overview of Whisper Systems Inc". Bloomberg Businessweek. Archived from the original on 4 March 2014. Retrieved 4 March 2014.

arstechnica.com

Megan Geuss (3 March 2015). "Now you can easily send (free!) encrypted messages between Android, iOS". Ars Technica. Archived from the original on 3 March 2015. Retrieved 4 March 2015.

businessweek.com

investing.businessweek.com

"Company Overview of Whisper Systems Inc". Bloomberg Businessweek. Archived from the original on 4 March 2014. Retrieved 4 March 2014.

cyberscoop.com

O'Neill, Patrick (3 January 2017). "How Tor and Signal can maintain the fight for freedom in Trump's America". CyberScoop. Scoop News Group. Archived from the original on 17 September 2017. Retrieved 25 January 2017.

dailydot.com

Dell Cameron (6 March 2015). "Edward Snowden tells you what encrypted messaging apps you should use". The Daily Dot. Archived from the original on 11 April 2015. Retrieved 24 May 2015.

doi.org

Unger et al. 2015, p. 241 Unger, Nik; Dechand, Sergej; Bonneau, Joseph; Fahl, Sascha; Perl, Henning; Goldberg, Ian Avrum; Smith, Matthew (2015). SoK: Secure Messaging (PDF). Proceedings of the 2015 IEEE Symposium on Security and Privacy. IEEE Computer Society's Technical Committee on Security and Privacy. pp. 232–249. doi:10.1109/SP.2015.22.

eff.org

ssd.eff.org

"Surveillance Self-Defense. Communicating with Others". Electronic Frontier Foundation. 23 October 2014. Archived from the original on 8 November 2014. Retrieved 25 January 2015.

eff.org

"Secure Messaging Scorecard. Which apps and tools actually keep your messages safe?". Electronic Frontier Foundation. 4 November 2014. Archived from the original on 15 November 2016. Retrieved 14 January 2015.

firstlook.org

Micah Lee (2 March 2015). "You Should Really Consider Installing Signal, an Encrypted Messaging App for iPhone". The Intercept. Archived from the original on 3 March 2015. Retrieved 3 March 2015.

forbes.com

Andy Greenberg (25 May 2010). "Android App Aims to Allow Wiretap-Proof Cell Phone Calls". Forbes. Archived from the original on 21 January 2012. Retrieved 28 February 2014.
Andy Greenberg (28 November 2011). "Twitter Acquires Moxie Marlinspike's Encryption Startup Whisper Systems". Forbes. Archived from the original on 14 December 2011. Retrieved 21 December 2011.

fortune.com

"Facebook's messaging service WhatsApp gets a security boost". Forbes. 18 November 2014. Archived from the original on 20 November 2014. Retrieved 21 November 2014.

freedom.press

Timm, Trevor (8 December 2016). "Freedom of the Press Foundation's new look, and our plans to protect press freedom for 2017". Freedom of the Press Foundation. Archived from the original on 2 February 2017. Retrieved 25 January 2017.
"Signal". Freedom of the Press Foundation. Archived from the original on 20 March 2018. Retrieved 25 January 2017.

ghacks.net

Martin Brinkmann (24 February 2014). "TextSecure is an open source messaging app with strong security features". Ghacks Technology News. Archived from the original on 2 March 2014. Retrieved 26 February 2014.

github.com

"Signal". GitHub. Archived from the original on 2 February 2019. Retrieved 13 February 2019.
Open Whisper Systems. "Signal-iOS". GitHub. Archived from the original on 2 March 2018. Retrieved 14 January 2015.
Open Whisper Systems. "Signal-Android". GitHub. Archived from the original on 21 February 2018. Retrieved 8 July 2016.
Open Whisper Systems. "Signal-Desktop". GitHub. Archived from the original on 2 March 2018. Retrieved 8 July 2016.
Signal Messenger LLC. "libsignal-protocol-c". GitHub. Archived from the original on 12 November 2020. Retrieved 13 February 2019.
Signal Messenger LLC. "libsignal-protocol-java". GitHub. Archived from the original on 21 November 2020. Retrieved 13 February 2019.
Signal Messenger LLC. "libsignal-protocol-javascript". GitHub. Archived from the original on 12 November 2020. Retrieved 25 September 2016.
Signal Messenger LLC. "libsignal-client". GitHub. Archived from the original on 8 January 2021. Retrieved 24 December 2020.
Open Whisper Systems. "Signal-Server". GitHub. Archived from the original on 20 March 2018. Retrieved 21 November 2016.
"Contact Discovery Service". GitHub. Open Whisper Systems. Archived from the original on 26 June 2018. Retrieved 28 September 2017.
Open Whisper Systems. "BitHub". GitHub. Archived from the original on 27 December 2014. Retrieved 14 January 2015.
Marlinspike, Moxie; Rizzio, Nicholas (11 November 2017). "Remove the last references to BitHub and Coinbase". GitHub. Archived from the original on 9 January 2021. Retrieved 31 January 2018.
Open Whisper Systems. "Flock". GitHub. Archived from the original on 3 November 2015. Retrieved 4 October 2015.
Open Whisper Systems. "RedPhone". GitHub. Archived from the original on 5 September 2015. Retrieved 11 November 2015.
Open Whisper Systems. "TextSecure". GitHub. Archived from the original on 8 February 2015. Retrieved 26 February 2014.

gist.github.com

rhodey (16 July 2015). "RE: Flock shutting down". GitHub Gist. Archived from the original on 29 September 2015. Retrieved 8 September 2015.

ieee-security.org

Unger et al. 2015, p. 241 Unger, Nik; Dechand, Sergej; Bonneau, Joseph; Fahl, Sascha; Perl, Henning; Goldberg, Ian Avrum; Smith, Matthew (2015). SoK: Secure Messaging (PDF). Proceedings of the 2015 IEEE Symposium on Security and Privacy. IEEE Computer Society's Technical Committee on Security and Privacy. pp. 232–249. doi:10.1109/SP.2015.22.

knightfoundation.org

"TextSecure". Knight Foundation. Archived from the original on 9 January 2021. Retrieved 17 October 2016.

mashable.com

Franceschi-Bicchierai, Lorenzo (18 November 2014). "WhatsApp messages now have Snowden-approved encryption on Android". Mashable. Archived from the original on 23 January 2015. Retrieved 23 January 2015.
Pete Pachal (20 December 2011). "Twitter Takes TextSecure, Texting App for Dissidents, Open Source". Mashable. Archived from the original on 7 March 2014. Retrieved 1 March 2014.

nytimes.com

Isaac, Mike (8 July 2016). "Facebook to Add 'Secret Conversations' to Messenger App". The New York Times. Archived from the original on 12 July 2016. Retrieved 14 July 2016.
Perlroth, Nicole; Benner, Katie (4 October 2016). "Subpoenas and Gag Orders Show Government Overreach, Tech Companies Argue". The New York Times. Archived from the original on 24 January 2020. Retrieved 4 October 2016.
Molly Wood (19 February 2014). "Privacy Please: Tools to Shield Your Smartphone". The New York Times. Archived from the original on 25 February 2014. Retrieved 26 February 2014.

opencorporates.com

"Signal Technology Foundation". OpenCorporates. Delaware Department of State: Division of Corporations. 15 July 2018. Retrieved 13 February 2019.

opentechfund.org

"Open Whisper Systems". Open Technology Fund. Archived from the original on 21 May 2015. Retrieved 4 September 2017.

pcmag.com

securitywatch.pcmag.com

Max Eddy (11 March 2014). "Snowden to SXSW: Here's How To Keep The NSA Out Of Your Stuff". PC Magazine: SecurityWatch. Archived from the original on 16 March 2014. Retrieved 16 March 2014.

propublica.org

projects.propublica.org

"Signal Technology Foundation". Nonprofit Explorer. Pro Publica Inc. 9 May 2013. Archived from the original on 9 January 2021. Retrieved 7 June 2019.

shuttleworthfoundation.org

"Moxie Marlinspike". Shuttleworth Foundation. September 2013. Archived from the original on 18 January 2015. Retrieved 28 January 2017.

signal.org

Marlinspike, Moxie; Acton, Brian (21 February 2018). "Signal Foundation". Signal.org. Archived from the original on 16 February 2020. Retrieved 21 February 2018.
"Signal Privacy Policy". Open Whisper Systems. Archived from the original on 31 January 2018. Retrieved 31 January 2018.
Nonnenberg, Scott (31 October 2017). "Standalone Signal Desktop". Open Whisper Systems. Archived from the original on 15 February 2020. Retrieved 31 October 2017.
Marlinspike, Moxie (26 September 2017). "Technology preview: Private contact discovery for Signal". Open Whisper Systems. Archived from the original on 28 September 2017. Retrieved 28 September 2017.

support.signal.org

Kolenkina, Masha. "How can I donate?". Signal Support Center. Open Whisper Systems. Archived from the original on 30 January 2018. Retrieved 31 January 2018.

spiegel.de

SPIEGEL Staff (28 December 2014). "Prying Eyes: Inside the NSA's War on Internet Security". Der Spiegel. Archived from the original on 24 January 2015. Retrieved 23 January 2015.
"Presentation from the SIGDEV Conference 2012 explaining which encryption protocols and techniques can be attacked and which not" (PDF). Der Spiegel. 28 December 2014. Archived (PDF) from the original on 8 October 2018. Retrieved 23 January 2015.

techcrunch.com

Marlinspike, Moxie (18 September 2017). "Moxie Marlinspike: Trust No One". TechCrunch Disrupt SF 2017 (Interview). Interviewed by Devin Coldewey. San Francisco, CA: Oath Inc. 3:50. Retrieved 19 September 2017.
Jon Evans (29 July 2014). "Talk Private To Me: Free, Worldwide, Encrypted Voice Calls With Signal For iPhone". TechCrunch. AOL. Archived from the original on 4 June 2016. Retrieved 25 June 2017.
Jon Evans (18 November 2014). "WhatsApp Partners With Open Whisper Systems To End-To-End Encrypt Billions Of Messages A Day". TechCrunch. Archived from the original on 18 November 2014. Retrieved 19 November 2014.
Lomas, Natasha (5 April 2016). "WhatsApp completes end-to-end encryption rollout". TechCrunch. AOL Inc. Archived from the original on 6 April 2016. Retrieved 5 April 2016.
Coldewey, Devin (31 October 2017). "Signal escapes the confines of the browser with a standalone desktop app". TechCrunch. Oath Tech Network. Archived from the original on 14 May 2019. Retrieved 31 October 2017.

techtimes.com

Robles, CJ (12 January 2021). "Elon Musk Promises to 'Donate More' Funds to Signal App After Last Week's Stocks Fiasco". Tech Times. Retrieved 29 January 2021.

theguardian.com

Gibbs, Samuel (21 September 2016). "Google launches WhatsApp competitor Allo – with Google Assistant". The Guardian. Archived from the original on 7 January 2019. Retrieved 21 September 2016.
Alan Yuhas (21 May 2015). "NSA surveillance powers on the brink as pressure mounts on Senate bill – as it happened". The Guardian. Archived from the original on 24 May 2015. Retrieved 24 May 2015.

theintercept.com

Lee, Micah (22 June 2016). "Battle of the Secure Messaging Apps: How Signal Beats WhatsApp". The Intercept. First Look Media. Retrieved 17 July 2016.

threatpost.com

Donohue, Brian (24 February 2014). "TextSecure Sheds SMS in Latest Version". Threatpost. Archived from the original on 15 February 2017. Retrieved 14 July 2016.
Michael Mimoso (29 July 2014). "New Signal App Brings Encrypted Calling to iPhone". Threatpost. Archived from the original on 18 January 2015. Retrieved 14 January 2015.

tomshardware.com

Mott, Nathaniel (14 March 2017). "Signal's Encrypted Video Calling For iOS, Android Leaves Beta". Tom's Hardware. Purch Group, Inc. Retrieved 14 March 2017.

twitter.com

blog.twitter.com

Chris Aniszczyk (20 December 2011). "The Whispers Are True". The Twitter Developer Blog. Twitter. Archived from the original on 24 October 2014. Retrieved 22 January 2015.

venturebeat.com

Tom Cheredar (28 November 2011). "Twitter acquires Android security startup Whisper Systems". VentureBeat. Archived from the original on 12 December 2011. Retrieved 21 December 2011.

vice.com

Franceschi-Bicchierai, Lorenzo (2 December 2015). "Snowden's Favorite Chat App Is Coming to Your Computer". Motherboard. Vice Media LLC. Archived from the original on 5 December 2015. Retrieved 4 December 2015.
DJ Pangburn (3 March 2014). "TextSecure Is the Easiest Encryption App To Use (So Far)". Motherboard. Archived from the original on 14 March 2014. Retrieved 14 March 2014.

vox.com

Zack Beauchamp (21 May 2015). "The 9 best moments from Edward Snowden's Reddit Q&A". Vox Media. Archived from the original on 24 May 2015. Retrieved 24 May 2015.

web.archive.org

"A New Home". Open Whisper Systems. 21 January 2013. Archived from the original on 29 April 2013. Retrieved 1 March 2014.
Franceschi-Bicchierai, Lorenzo (18 November 2014). "WhatsApp messages now have Snowden-approved encryption on Android". Mashable. Archived from the original on 23 January 2015. Retrieved 23 January 2015.
Marlinspike, Moxie; Acton, Brian (21 February 2018). "Signal Foundation". Signal.org. Archived from the original on 16 February 2020. Retrieved 21 February 2018.
"Signal Privacy Policy". Open Whisper Systems. Archived from the original on 31 January 2018. Retrieved 31 January 2018.
O'Neill, Patrick (3 January 2017). "How Tor and Signal can maintain the fight for freedom in Trump's America". CyberScoop. Scoop News Group. Archived from the original on 17 September 2017. Retrieved 25 January 2017.
"Signal Technology Foundation". Nonprofit Explorer. Pro Publica Inc. 9 May 2013. Archived from the original on 9 January 2021. Retrieved 7 June 2019.
Garling, Caleb (20 December 2011). "Twitter Open Sources Its Android Moxie | Wired Enterprise". Wired. Archived from the original on 22 December 2011. Retrieved 21 December 2011.
Andy Greenberg (25 May 2010). "Android App Aims to Allow Wiretap-Proof Cell Phone Calls". Forbes. Archived from the original on 21 January 2012. Retrieved 28 February 2014.
Tom Cheredar (28 November 2011). "Twitter acquires Android security startup Whisper Systems". VentureBeat. Archived from the original on 12 December 2011. Retrieved 21 December 2011.
Yadron, Danny (9 July 2015). "Moxie Marlinspike: The Coder Who Encrypted Your Texts". The Wall Street Journal. Archived from the original on 12 July 2015. Retrieved 10 July 2015.
Andy Greenberg (28 November 2011). "Twitter Acquires Moxie Marlinspike's Encryption Startup Whisper Systems". Forbes. Archived from the original on 14 December 2011. Retrieved 21 December 2011.
Garling, Caleb (28 November 2011). "Twitter Buys Some Middle East Moxie | Wired Enterprise". Wired. Archived from the original on 22 December 2011. Retrieved 21 December 2011.
Chris Aniszczyk (20 December 2011). "The Whispers Are True". The Twitter Developer Blog. Twitter. Archived from the original on 24 October 2014. Retrieved 22 January 2015.
"TextSecure is now Open Source!". Whisper Systems. 20 December 2011. Archived from the original on 6 January 2012. Retrieved 22 January 2015.
Pete Pachal (20 December 2011). "Twitter Takes TextSecure, Texting App for Dissidents, Open Source". Mashable. Archived from the original on 7 March 2014. Retrieved 1 March 2014.
"RedPhone is now Open Source!". Whisper Systems. 18 July 2012. Archived from the original on 31 July 2012. Retrieved 22 January 2015.
Andy Greenberg (29 July 2014). "Your iPhone Can Finally Make Free, Encrypted Calls". Wired. Archived from the original on 18 January 2015. Retrieved 18 January 2015.
Donohue, Brian (24 February 2014). "TextSecure Sheds SMS in Latest Version". Threatpost. Archived from the original on 15 February 2017. Retrieved 14 July 2016.
"Free, Worldwide, Encrypted Phone Calls for iPhone". Open Whisper Systems. 29 July 2014. Archived from the original on 29 July 2014. Retrieved 29 July 2014.
Michael Mimoso (29 July 2014). "New Signal App Brings Encrypted Calling to iPhone". Threatpost. Archived from the original on 18 January 2015. Retrieved 14 January 2015.
Jon Evans (29 July 2014). "Talk Private To Me: Free, Worldwide, Encrypted Voice Calls With Signal For iPhone". TechCrunch. AOL. Archived from the original on 4 June 2016. Retrieved 25 June 2017.
Micah Lee (2 March 2015). "You Should Really Consider Installing Signal, an Encrypted Messaging App for iPhone". The Intercept. Archived from the original on 3 March 2015. Retrieved 3 March 2015.
Megan Geuss (3 March 2015). "Now you can easily send (free!) encrypted messages between Android, iOS". Ars Technica. Archived from the original on 3 March 2015. Retrieved 4 March 2015.
Jon Evans (18 November 2014). "WhatsApp Partners With Open Whisper Systems To End-To-End Encrypt Billions Of Messages A Day". TechCrunch. Archived from the original on 18 November 2014. Retrieved 19 November 2014.
"Open Whisper Systems partners with WhatsApp to provide end-to-end encryption". Open Whisper Systems. 18 November 2014. Archived from the original on 18 November 2014. Retrieved 18 November 2014.
"Facebook's messaging service WhatsApp gets a security boost". Forbes. 18 November 2014. Archived from the original on 20 November 2014. Retrieved 21 November 2014.
Metz, Cade (5 April 2016). "Forget Apple vs. the FBI: WhatsApp Just Switched on Encryption for a Billion People". Wired. Condé Nast. Archived from the original on 5 April 2016. Retrieved 5 April 2016.
Lomas, Natasha (5 April 2016). "WhatsApp completes end-to-end encryption rollout". TechCrunch. AOL Inc. Archived from the original on 6 April 2016. Retrieved 5 April 2016.
Greenberg, Andy (18 May 2016). "With Allo and Duo, Google Finally Encrypts Conversations End-to-End". Wired. Condé Nast. Archived from the original on 2 February 2017. Retrieved 14 July 2016.
Gibbs, Samuel (21 September 2016). "Google launches WhatsApp competitor Allo – with Google Assistant". The Guardian. Archived from the original on 7 January 2019. Retrieved 21 September 2016.
Isaac, Mike (8 July 2016). "Facebook to Add 'Secret Conversations' to Messenger App". The New York Times. Archived from the original on 12 July 2016. Retrieved 14 July 2016.
Greenberg, Andy (8 July 2016). "'Secret Conversations:' End-to-End Encryption Comes to Facebook Messenger". Wired. Condé Nast. Archived from the original on 11 July 2016. Retrieved 14 July 2016.
Greenberg, Andy (4 October 2016). "You Can All Finally Encrypt Facebook Messenger, So Do It". Wired. Condé Nast. Archived from the original on 15 April 2017. Retrieved 5 October 2016.
Greenberg, Andy (2 November 2015). "Signal, the Snowden-Approved Crypto App, Comes to Android". Wired. Condé Nast. Archived from the original on 26 January 2018. Retrieved 22 March 2016.
Franceschi-Bicchierai, Lorenzo (2 December 2015). "Snowden's Favorite Chat App Is Coming to Your Computer". Motherboard. Vice Media LLC. Archived from the original on 5 December 2015. Retrieved 4 December 2015.
Marlinspike, Moxie (26 September 2016). "Desktop support comes to Signal for iPhone". Open Whisper Systems. Archived from the original on 7 July 2017. Retrieved 26 September 2016.
Nonnenberg, Scott (31 October 2017). "Standalone Signal Desktop". Open Whisper Systems. Archived from the original on 15 February 2020. Retrieved 31 October 2017.
Coldewey, Devin (31 October 2017). "Signal escapes the confines of the browser with a standalone desktop app". TechCrunch. Oath Tech Network. Archived from the original on 14 May 2019. Retrieved 31 October 2017.
Perlroth, Nicole; Benner, Katie (4 October 2016). "Subpoenas and Gag Orders Show Government Overreach, Tech Companies Argue". The New York Times. Archived from the original on 24 January 2020. Retrieved 4 October 2016.
Kaufman, Brett Max (4 October 2016). "New Documents Reveal Government Effort to Impose Secrecy on Encryption Company" (Blog post). American Civil Liberties Union. Archived from the original on 25 July 2017. Retrieved 4 October 2016.
"Grand jury subpoena for Signal user data, Eastern District of Virginia". Open Whisper Systems. 4 October 2016. Archived from the original on 29 August 2017. Retrieved 4 October 2016.
Greenberg, Andy (21 February 2018). "WhatsApp Co-Founder Puts $50M Into Signal To Supercharge Encrypted Messaging". Wired. Condé Nast. Archived from the original on 22 February 2018. Retrieved 21 February 2018.
Marlinspike, Moxie (6 May 2014). "What is TextSecure's business model?". Hacker News. Archived from the original on 5 February 2017. Retrieved 4 February 2017.
"Moxie Marlinspike". Shuttleworth Foundation. September 2013. Archived from the original on 18 January 2015. Retrieved 28 January 2017.
"TextSecure". Knight Foundation. Archived from the original on 9 January 2021. Retrieved 17 October 2016.
"Open Whisper Systems". Open Technology Fund. Archived from the original on 21 May 2015. Retrieved 4 September 2017.
Kolenkina, Masha. "How can I donate?". Signal Support Center. Open Whisper Systems. Archived from the original on 30 January 2018. Retrieved 31 January 2018.
Timm, Trevor (8 December 2016). "Freedom of the Press Foundation's new look, and our plans to protect press freedom for 2017". Freedom of the Press Foundation. Archived from the original on 2 February 2017. Retrieved 25 January 2017.
"Signal". Freedom of the Press Foundation. Archived from the original on 20 March 2018. Retrieved 25 January 2017.
Max Eddy (11 March 2014). "Snowden to SXSW: Here's How To Keep The NSA Out Of Your Stuff". PC Magazine: SecurityWatch. Archived from the original on 16 March 2014. Retrieved 16 March 2014.
"The Virtual Interview: Edward Snowden - The New Yorker Festival". YouTube. The New Yorker. 11 October 2014. Archived from the original on 9 January 2021. Retrieved 24 May 2015.
Dell Cameron (6 March 2015). "Edward Snowden tells you what encrypted messaging apps you should use". The Daily Dot. Archived from the original on 11 April 2015. Retrieved 24 May 2015.
Alan Yuhas (21 May 2015). "NSA surveillance powers on the brink as pressure mounts on Senate bill – as it happened". The Guardian. Archived from the original on 24 May 2015. Retrieved 24 May 2015.
Zack Beauchamp (21 May 2015). "The 9 best moments from Edward Snowden's Reddit Q&A". Vox Media. Archived from the original on 24 May 2015. Retrieved 24 May 2015.
Barrett, Brian (25 February 2016). "Apple Hires Lead Dev of Snowden's Favorite Messaging App". Wired. Condé Nast. Archived from the original on 29 February 2016. Retrieved 2 March 2016.
"Surveillance Self-Defense. Communicating with Others". Electronic Frontier Foundation. 23 October 2014. Archived from the original on 8 November 2014. Retrieved 25 January 2015.
"Secure Messaging Scorecard. Which apps and tools actually keep your messages safe?". Electronic Frontier Foundation. 4 November 2014. Archived from the original on 15 November 2016. Retrieved 14 January 2015.
SPIEGEL Staff (28 December 2014). "Prying Eyes: Inside the NSA's War on Internet Security". Der Spiegel. Archived from the original on 24 January 2015. Retrieved 23 January 2015.
"Presentation from the SIGDEV Conference 2012 explaining which encryption protocols and techniques can be attacked and which not" (PDF). Der Spiegel. 28 December 2014. Archived (PDF) from the original on 8 October 2018. Retrieved 23 January 2015.
"Signal". GitHub. Archived from the original on 2 February 2019. Retrieved 13 February 2019.
Open Whisper Systems. "Signal-iOS". GitHub. Archived from the original on 2 March 2018. Retrieved 14 January 2015.
Open Whisper Systems. "Signal-Android". GitHub. Archived from the original on 21 February 2018. Retrieved 8 July 2016.
Open Whisper Systems. "Signal-Desktop". GitHub. Archived from the original on 2 March 2018. Retrieved 8 July 2016.
Signal Messenger LLC. "libsignal-protocol-c". GitHub. Archived from the original on 12 November 2020. Retrieved 13 February 2019.
Signal Messenger LLC. "libsignal-protocol-java". GitHub. Archived from the original on 21 November 2020. Retrieved 13 February 2019.
Signal Messenger LLC. "libsignal-protocol-javascript". GitHub. Archived from the original on 12 November 2020. Retrieved 25 September 2016.
Signal Messenger LLC. "libsignal-client". GitHub. Archived from the original on 8 January 2021. Retrieved 24 December 2020.
Open Whisper Systems. "Signal-Server". GitHub. Archived from the original on 20 March 2018. Retrieved 21 November 2016.
"Contact Discovery Service". GitHub. Open Whisper Systems. Archived from the original on 26 June 2018. Retrieved 28 September 2017.
Marlinspike, Moxie (26 September 2017). "Technology preview: Private contact discovery for Signal". Open Whisper Systems. Archived from the original on 28 September 2017. Retrieved 28 September 2017.
Greenberg, Andy (26 September 2017). "Signal Has a Fix for Apps' Contact-Leaking Problem". Wired. Condé Nast. Archived from the original on 27 September 2017. Retrieved 28 September 2017.
Open Whisper Systems. "BitHub". GitHub. Archived from the original on 27 December 2014. Retrieved 14 January 2015.
Finley, Klint (17 December 2013). "Love Child of Bitcoin and GitHub Pays Cash for Code". Wired. Condé Nast. Archived from the original on 18 September 2015. Retrieved 22 September 2015.
Marlinspike, Moxie; Rizzio, Nicholas (11 November 2017). "Remove the last references to BitHub and Coinbase". GitHub. Archived from the original on 9 January 2021. Retrieved 31 January 2018.
rhodey (16 July 2015). "RE: Flock shutting down". GitHub Gist. Archived from the original on 29 September 2015. Retrieved 8 September 2015.
Open Whisper Systems. "Flock". GitHub. Archived from the original on 3 November 2015. Retrieved 4 October 2015.
Open Whisper Systems. "RedPhone". GitHub. Archived from the original on 5 September 2015. Retrieved 11 November 2015.
Open Whisper Systems. "TextSecure". GitHub. Archived from the original on 8 February 2015. Retrieved 26 February 2014.
Molly Wood (19 February 2014). "Privacy Please: Tools to Shield Your Smartphone". The New York Times. Archived from the original on 25 February 2014. Retrieved 26 February 2014.
DJ Pangburn (3 March 2014). "TextSecure Is the Easiest Encryption App To Use (So Far)". Motherboard. Archived from the original on 14 March 2014. Retrieved 14 March 2014.
Moxie Marlinspike (24 February 2014). "The New TextSecure: Privacy Beyond SMS". Open Whisper Systems. Archived from the original on 24 February 2014. Retrieved 26 February 2014.
Martin Brinkmann (24 February 2014). "TextSecure is an open source messaging app with strong security features". Ghacks Technology News. Archived from the original on 2 March 2014. Retrieved 26 February 2014.

whispersys.com

"TextSecure is now Open Source!". Whisper Systems. 20 December 2011. Archived from the original on 6 January 2012. Retrieved 22 January 2015.
"RedPhone is now Open Source!". Whisper Systems. 18 July 2012. Archived from the original on 31 July 2012. Retrieved 22 January 2015.

whispersystems.org

"A New Home". Open Whisper Systems. 21 January 2013. Archived from the original on 29 April 2013. Retrieved 1 March 2014.
"Free, Worldwide, Encrypted Phone Calls for iPhone". Open Whisper Systems. 29 July 2014. Archived from the original on 29 July 2014. Retrieved 29 July 2014.
"Open Whisper Systems partners with WhatsApp to provide end-to-end encryption". Open Whisper Systems. 18 November 2014. Archived from the original on 18 November 2014. Retrieved 18 November 2014.
Marlinspike, Moxie (26 September 2016). "Desktop support comes to Signal for iPhone". Open Whisper Systems. Archived from the original on 7 July 2017. Retrieved 26 September 2016.
"Grand jury subpoena for Signal user data, Eastern District of Virginia". Open Whisper Systems. 4 October 2016. Archived from the original on 29 August 2017. Retrieved 4 October 2016.
Moxie Marlinspike (24 February 2014). "The New TextSecure: Privacy Beyond SMS". Open Whisper Systems. Archived from the original on 24 February 2014. Retrieved 26 February 2014.

wired.com

Garling, Caleb (20 December 2011). "Twitter Open Sources Its Android Moxie | Wired Enterprise". Wired. Archived from the original on 22 December 2011. Retrieved 21 December 2011.
Garling, Caleb (28 November 2011). "Twitter Buys Some Middle East Moxie | Wired Enterprise". Wired. Archived from the original on 22 December 2011. Retrieved 21 December 2011.
Andy Greenberg (29 July 2014). "Your iPhone Can Finally Make Free, Encrypted Calls". Wired. Archived from the original on 18 January 2015. Retrieved 18 January 2015.
Metz, Cade (5 April 2016). "Forget Apple vs. the FBI: WhatsApp Just Switched on Encryption for a Billion People". Wired. Condé Nast. Archived from the original on 5 April 2016. Retrieved 5 April 2016.
Greenberg, Andy (18 May 2016). "With Allo and Duo, Google Finally Encrypts Conversations End-to-End". Wired. Condé Nast. Archived from the original on 2 February 2017. Retrieved 14 July 2016.
Greenberg, Andy (8 July 2016). "'Secret Conversations:' End-to-End Encryption Comes to Facebook Messenger". Wired. Condé Nast. Archived from the original on 11 July 2016. Retrieved 14 July 2016.
Greenberg, Andy (4 October 2016). "You Can All Finally Encrypt Facebook Messenger, So Do It". Wired. Condé Nast. Archived from the original on 15 April 2017. Retrieved 5 October 2016.
Greenberg, Andy (2 November 2015). "Signal, the Snowden-Approved Crypto App, Comes to Android". Wired. Condé Nast. Archived from the original on 26 January 2018. Retrieved 22 March 2016.
Greenberg, Andy (21 February 2018). "WhatsApp Co-Founder Puts $50M Into Signal To Supercharge Encrypted Messaging". Wired. Condé Nast. Archived from the original on 22 February 2018. Retrieved 21 February 2018.
Barrett, Brian (25 February 2016). "Apple Hires Lead Dev of Snowden's Favorite Messaging App". Wired. Condé Nast. Archived from the original on 29 February 2016. Retrieved 2 March 2016.
Greenberg, Andy (26 September 2017). "Signal Has a Fix for Apps' Contact-Leaking Problem". Wired. Condé Nast. Archived from the original on 27 September 2017. Retrieved 28 September 2017.
Finley, Klint (17 December 2013). "Love Child of Bitcoin and GitHub Pays Cash for Code". Wired. Condé Nast. Archived from the original on 18 September 2015. Retrieved 22 September 2015.

wsj.com

Yadron, Danny (9 July 2015). "Moxie Marlinspike: The Coder Who Encrypted Your Texts". The Wall Street Journal. Archived from the original on 12 July 2015. Retrieved 10 July 2015.

ycombinator.com

news.ycombinator.com

Marlinspike, Moxie (6 May 2014). "What is TextSecure's business model?". Hacker News. Archived from the original on 5 February 2017. Retrieved 4 February 2017.

youtube.com

Perrin, Trevor (9 June 2015). TextSecure Protocol: Present and Future (Video). NorthSec. Event occurs at 0:21. Retrieved 24 September 2016.
"The Virtual Interview: Edward Snowden - The New Yorker Festival". YouTube. The New Yorker. 11 October 2014. Archived from the original on 9 January 2021. Retrieved 24 May 2015.