Many casual objects are now connected to the internet. The objects are managed with micro-computers for costeffectiveness. Because this computer has limited processing and storage, they usually act as a collection of data. The data are processed by powerful computers. Therefore, data needs to be transferred to the computers. However, since most of the objects are connected to the internet in a wireless environment, they cause significant security weakness. In this study, a new chaosbased lightweight encryption mechanism is proposed to provide a solution to the problem. The aim of the study is to reduce the overhead of microcomputers and to have strong encryption of data. The 3-dimensional Lorenz chaotic system is used to test the performance of the study. According to the experimental results obtained, it has been observed that the proposed working image data is strongly encrypted and with less processing and storage than traditional encryption algorithms. This study will be used for the security of microcomputers to be used in future studies and more detailed performance tests of this method will be carried out.