A comm unit scrambler, also known as a comlink scrambler or simply a comm scrambler, represented a form of encryption tech. This technology was designed to be more compact and less complex when compared to a full encryption module. These comm scramblers were integrated into diverse technologies, for instance, they were found in starfighters. The Coruscant Guard armor incorporated a comlink scrambler within its helmet, enabling Coruscant Guard personnel to maintain communication without external interception.
During an infiltration of a power plant, a group consisting of Alliance agents and Sessehshellah managed to acquire a scrambler. This acquisition subsequently gave them unauthorized access to the local Imperial transmission networks.