An information support (12) has at least one piece of information which is provided on the information support (12). The information is covered by material layer which is released by means of ultrasonic sonotrode (18) from a hot-stamping strip (24) wherein the material layer is transferred to the information support (12) at the position at which the information on the information support (12) is to be covered. The transfer of material layers onto an information support can be effected rapidly and in an economical fashion at low temperatures using the ultrasonic sonotrode. The ultrasonic sonotrode preferably operates in an oscillatory region between 15,000 and 35,000 Hz. The information support (12) can be configured as a support which accepts a material layer without covering information on the support.