In this project, the results concerning the exfiltration of information through ultrasound between computer equipment are delivered, that is, to be able to send information (from equipment A to equipment B) that can be sensitive through an unconventional means such as It is the ultrasound. The information and data can be violated by different means, this project addresses how from workstations, a user can transmit information using peripheral systems that support ultrasound, whereby the principle of confidentiality is violated. To achieve the objective, 2 situations were used, one free of noise and the other, an office environment, likewise, the use of GNU Radio software, QuietNet and its own development was counted, which is connected through the definition of Some levels of classification, visualize the process of exfiltration of information. With the execution of the different tests, the transmission, reception and visualization of data is controlled, it is detected once received, an information classification process was applied, which, although it is a test environment, can be applied to any computer element that can be transmitted by ultrasound. The tests carried out focused on the use of basic unmodified hardware (portable equipment without modifications), for simulate conditions of specific controls