Patent ID: 10154045

Abstract:
A method of communicating between secured computer systems includes supplementing a prepared task file with specified information in a source computer system, transmitting the supplemented task file from the source computer system to a task computer system, transmitting the supplemented task file from the task computer system to a target computer system, verifying validity of the supplemented task file by the target computer system, and executing at least one task in the target computer system on the basis of the supplemented task file in the event that verification of the validity of the supplemented task file was successful, wherein both the source computer system and the target computer system at least temporarily keep specified network ports closed such that addressability of the source computer system or of the target computer system, respectively, via a network for storing or fetching the task file is prevented, but the task computer system is accessible with at least one listening open network port via network such that the source computer system or the target computer system can access the task computer system to store the task file in the task computer system or fetch it from the task computer system.