GSMK CryptoPhone Technology

Cp500 Small

  • Trustworthy solution for confidential phone calls and messages
  • 360° mobile device security
  • Easy to use
  • Strong, fully verifiable encryption: Voice and data encrypted with AES 256 and Twofish


Trustworthy Voice and Message Encryption

Welcome Header

  • GSMK CryptoPhones are your trustworthy solution for completely confidential encrypted telephone calls – whether by GSM cellular network, 3G/UMTS, satellite, or land line
  • GSMK CryptoPhones are based on the strongest encryption algorithms on the market
  • GSMK CryptoPhones are the only secure phones that come with full source code available for independent review – allowing their security to be fully verified by independent researchers
  • GSMK CryptoPhones provide hassle-free, integrated security – protecting not only the information you exchange by phone, but also the data on your mobile device



Mwc Logo Rgb No Date Cropped

Next-generation mobile network defense at Mobile World Congress 2019

GSMK Overwatch Generation 2 network defense system with advanced sensor fusion makes its debut at MWC 2019 Barcelona

GSMK recognized by Gartner for Critical Capabilities for High-Security Mobility Management

GSMK recognized for its GSMK CryptoPhone® product line for the fourth time in a row in Gartner’s 2018 Critical Capabilities for High-Security Mobility Management report