CIS Encrypted, Portable Bootable Thumb Drives are encrypted SSD thumb drives available in 128GB or 256GB capacities that contain fully operational operating systems including Windows, Ubuntu, or Kali Linux. The drives are designed to boot from any compatible host machine without leaving residual data or traces on the local system. The thumb drives utilize only the host machine's CPU and memory resources while maintaining data security through encryption for both data in transit and data at rest. Each drive includes a complete software suite with office applications, internet capabilities, secure chat, encrypted email, and a proprietary Mercury VPN client. The solution provides MAC address rotation capabilities and supports encrypted phone calls through a proprietary network infrastructure. The drives are compatible with CIS network infrastructure and include private secure cloud connection functionality. The portable nature allows users to carry their complete operating environment on a thumb drive while maintaining security and privacy across different host machines.