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Say "hello" to a different messaging experience. An unexpected focus on privacy, combined with all of the features you expect.
Whisper Systems is a software development company that focuses on creating secure communication tools. The company was founded by Moxie Marlinspike and Stuart Anderson in 2010. Whisper Systems is best known for its development of the Signal app, which provides encrypted messaging and voice calls. The company's mission is to make private communication simple and accessible to everyone.
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Citation Level
2010
English, etc
Key Features of the Site
Signal App
An encrypted messaging and voice call application that ensures user privacy and security.
End-to-End Encryption
All communications are encrypted from end to end, ensuring that only the communicating users can read the messages.
Open Source
The Signal protocol and app are open source, allowing for transparency and community contributions.
Privacy Focused
Designed with privacy as a priority, minimizing data collection and ensuring user anonymity.
Cross-Platform Support
Available on multiple platforms including iOS, Android, and desktop, facilitating secure communication across devices.
Similar Sites and Competitors to whispersystems.org
Additional information
Acquisition
Whisper Systems was acquired by Twitter in 2011, but Moxie Marlinspike left Twitter in 2013 to focus on Open Whisper Systems, the non-profit behind Signal.
Open Whisper Systems
After leaving Twitter, Moxie Marlinspike founded Open Whisper Systems as a non-profit organization to continue the development of Signal and other privacy-focused tools.
Signal Protocol
The Signal Protocol, developed by Whisper Systems, is a cryptographic protocol that provides end-to-end encryption for voice calls and instant messaging. It is widely regarded for its security and has been adopted by other messaging apps like WhatsApp and Facebook Messenger.
Awards and Recognition
Signal has received numerous awards and recognition for its commitment to privacy and security, including being recommended by Edward Snowden.
Funding
Open Whisper Systems has received funding from various sources, including grants and donations, to support its mission of providing secure communication tools.
HTTP headers
Security headers report is a very important part of user data protection. Learn more about http headers for whispersystems.org