Secure Communication Systems Competitors

At Rakuten Viber, we connect people. No matter who they are, or where they are from. Our global user base has access to a range of features like one-on-one chats, video calls, group messaging, and updates and discussions with their favorite brands and celebrities. We ensure our users have a secure and free environment to share their emotions. Rakuten Viber is part of Rakuten Inc., a world leader in e-commerce and financial services. It is the official instant messaging and calling app partner of the NBA’s Golden State Warriors. Join Rakuten Viber today and enjoy the world’s best communication experience.

Wire is a secure messenger and collaboration platform built for organizations that cannot afford leaks, exposure, or loss of control. We help governments, critical infrastructure, and enterprises replace insecure messaging, reduce shadow IT, and take back control of their communications. It brings together messaging, voice, video, and file sharing in one workspace, protected by strong, always on end to end encryption. ❌ The reality today Most collaboration tools were not designed for security. They expose data, create dependency on non sovereign providers, and leave gaps in compliance. ✅ What Wire does differently – End to end encryption is always on across messages, calls, and files – No one can access your data, not even Wire – Flexible deployment across EU cloud, private cloud, on prem, or air gapped environments – Encryption based on the Messaging Layer Security standard, built to scale without friction Unlike traditional tools, Wire is built so that security does not depend on trust in the provider. It removes data access, reduces sovereignty risk, and gives organizations full control over their communications. ➡️ Where it matters most – Crisis and incident communication – Confidential workflows across legal, executive, and security teams – Frontline and cross organization coordination without consumer apps ✅ The result Secure, sovereign collaboration your teams can actually use without compromise. Book a demo and see how Wire fits into your security and IT environment and replaces insecure communication tools.

Privacy is possible. Signal Messenger makes it easy. At Signal, our goal is to develop open source privacy technology that protects privacy rights, promotes free expression and enables secure global communication. We believe that private messaging should be simple and ubiquitous. Signal combines state-of-the-art security and end-to-end encryption with the features that users expect in a modern messaging application. Millions of people use Signal every day to speak freely, and a growing list of organizations have integrated the open source Signal Protocol into messaging platforms that support billions of users. Working on Signal is an opportunity to become part of a diverse group of people who are passionate about privacy. As a nonprofit organization, Signal Messenger is uniquely positioned to focus on its mission in an environment where users will always come first. Our team is growing quickly, and we encourage candidates from a diverse set of backgrounds to apply. workwithus@signal.org