Smartphone users are especially anxious about the security of their gadgets, and manufacturers with each new model introduce new innovative technologies to protect the personal data of mobile device owners. The top Samsung Galaxy S10 smartphones use ultrasound scanners mounted beneath the surface of the screen to identify the fingerprints of owners. The developers assure that such a technology is more reliable and safer than conventional optical sensors. However, there was an enthusiast who managed to circumvent the protection of ultrasonic sensors. The deception technology is quite complicated and time-consuming, but nevertheless it is feasible. The experimenter uploaded the process to video on the Internet. First, he photographed his fingerprints on the transparent glass of a glass using a DSLR camera. The picture was edited using Photoshop and 3DS Max. The next step was the printing of photos on a 3D printer. The smartphone was unlocked already on the third attempt.