Semaphor

The SpiderOak team needed a secure solution for group messaging and file sharing, one that avoided the risks of email or off-the-shelf collaboration tools. So we built Semaphor, utilizing private blockchain encryption for group messaging. Now, your company or team can safeguard your most critical communications with the same No Knowledge application we use at SpiderOak. Semaphor provides secure group messaging for your most sensitive data. End-to-end encryption powered by private blockchain technology protects your private corporate communications and daily workflows. Our "No Knowledge" philosophy is the foundation of everything SpiderOak does. Your data in Semaphor is secured by private blockchain technology and end-to-end encryption. This means all data is encrypted before it leaves your device, and no SpiderOak employee can view or access any of it. Only your team members have access to your data. Semaphor 2.0 has been completely redesigned for improved usability and simplicity. Create teams and channels, send messages and files—all within an easy-to-use interface. With its mobile-first design, Semaphor delivers full functionality no matter which device you access it from. Download and install Semaphor on all your computers and mobile devices. Supported platforms include Windows, macOS, Linux (beta), iOS, and Android. When it comes to something as important as your security and data, you need the ability to verify how our product works. Semaphor is free for teams of 5 or fewer. All teams include unlimited message and file retention, unlimited file sharing, a 2 GB single file size limit, and unlimited channels and messages.

Semaphor is a highly secure team collaboration tool with end-to-end encryption and private blockchain technology, protecting sensitive company communications and data.