Secure communication applications: As we mentioned in our recent article, the Hellenic Police and the Hellenic Police aim to acquire an extremely expensive system that aims to immediately begin monitoring Viber, WhatsApp and dozens of other Internet communication applications.
At the end of October, a team of EYP executives traveled to England where they appear to have attended a demonstration of such a system, while there is similar interest from Hellenic Police services, such as the Intelligence Management Directorate and the Counter-Terrorism Service.
For this reason, we would like to recommend the two -for the moment- best and most secure messaging and calling applications.

End-to-end Encryption
Both messaging apps use End-to-end Encryption. What does this mean? Data is stored on the endpoints (i.e. by users and not by servers) and companies do not retain the data nor can they decrypt it with a master key.

Silent Phone
Silent Phone provides encrypted voice, video and messaging. Calls and messages between Silent Phone members are End-to-end Encrypted and protect your business from both criminals and competitors.
Features:
- True Privacy. Trusted by businesses and governments around the world.
- Simple “zero–touch” deployment in your organization.
- Secure conference calling with HD call clarity.
- Burn mode protects messaging with automatic self-destruction.
- Voice messages offer a modern replacement for the insecure audio messages of other messaging apps.
- Securely send pdf, docx, mov, mp4, png and jpg files.
- Silent Phone allows communication with users who are not members of the application.

Signal
Signal (Open Whisper System) makes it easy to protect your privacy. Using Signal you can communicate instantly, avoiding SMS, create groups so you can chat in real time with all your friends at once, and share all your media with complete privacy. The server never has access to any of your communications and never stores any of your data.
Features:
- Signal uses your existing phone number and address book. There are no separate logins, usernames, passwords , or PINs.
- Group Chat – Signal lets you create encrypted groups so you can have private conversations with all your friends at once. Not all messages are encrypted, but the Signal server never has access to any group metadata like the member list, group title, or group icon.
