Encrypted Knox

Enterprise-grade mobile security practices and end-to-end encryption combined in one easy to use device
Private, Reliable, Secure
Encrypted Knox is a complete solution for email and chat communication. It is controlled by a mobile device management system and features custom apps and a multi-IMSI Secure SIM card. Encrypted Knox is perfect for business and regular users who value their privacy and the security of their communications.
Secure Email
The average email account is permanently at risk. It can be intercepted both on the incoming and outgoing end. Secure Email for Knox is our solution. Protected by PGP encryption, it is extremely reliable and secure, yet user-friendly enough for anyone to use.
Yes, there are other PGP solutions, but most are enterprise-oriented, expensive and compromised by corporate retention law – a backdoor is created to allow companies to retain and store communication data.
  • End-to-end PGP encryption
  • Generating new keys on the fly
  • Authentication, so you know who you are talking to
  • Compatible with other PGP-based apps
  • Remote wipe capabilities
Strongest available encryption
Our CryptoCloud Email app uses AES-256 with 4096-bit RSA keys. Decrypting messages is out of scope even for supercomputers.
Control over keys
The cryptographic keys are created and stored only by the user. There are no copies of them stored on our servers
Easy to use
CryptoCloud Email has all the features of regular mail clients (message filtering, support for multiple accounts, etc.), but with added encryption.
    Secure Chat
    Mobile phones allow us to endlessly text and chat. But is our chat and text message correspondence secure and private? Hardly.
    Secure Chat is a secure alternative to Skype, WhatsApp, Viber, Snapchat and other communication apps. It is an encrypted instant messaging (IM) client developed from the ground up. Developed for Knox, it relies on the OTR (Off-The-Record) protocol, and makes sure your messages are only seen by authorized recipients.
    • End-to-end OTR encryption 16,384 bit
    • Elliptic Curve 384 Bits (RSA 7680 Bits Equivalent)
    • AES 256 Bits
    • Diffie Hellman 4096 Bits
    • New rolling encryption keys for every session
    • Group chat - up to 30 members total
    • Encrypted walkie talkie - instant encrypted 2 way voice messaging
    • Encrypted call - make calls between encrypted knox to encrypted android and vice versa
    • For your eyes only (FYEO) / Time to live (TTL) custom encrypted message settings
    Encrypted chat and calls
    CryptoCloud Chat encrypts your chats and voice calls, using the OTR, OMEMO and ZTRTP protocols.
    Peer-to-peer messaging

    Messages are sent only when the recipient is online. No copies are ever stored on our servers.

    Reliable authentication

    The app ensures the person you are talking to is who they claim to be, preventing man-in-the-middle attacks.


    Reliable Hardware

    Encrypted Knox is based on Android Samsung phones known for their ease-of-use and reliability. We have over 30 models available for all price categories.

    • Available models: Samsung Galaxy J, S, C, O series
    • Samsung Note series and more
    • Compatible with most Samsung devices
    • Long battery life, low weight and latest OS


    Unlimited Data, Anywhere 

    Along with the best protection, we also provide you with the best communication. Encrypted knox comes with a multi-IMSI Secure SIM card that always keeps you connected. It offers unlimited data internationally without roaming or other fees.

    Secure SIM is a dual imsi MVNO SIM card, which is required for the correct behavior of the apps on Encrypted Knox.

    • Multi-IMSI for the best connectivity
    • Unlimited data anywhere you go
    • No roaming or other fees

    Bring your own device

    Enjoying the benefits of Encrypted knox does not require you to buy the hardware we offer. Encrypted Knox is not the device itself, but an operating system combined with our custom apps, device management portal and SIM card.

    That is why you can bring your regular Samsung device and we can push Encrypted Knox on your device.

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