Method for preventing software or data from being pirated

The invention relates to the field of pirate prevention, in particular to a method for preventing software or data from being pirated. Important data such as software programs or data are stored in a difficultly dismounted box, and if people forcedly dismount the box, a detector is touched. Anti-dismounting software acquires data of the detector in real time, and once the situation that the box is dismounted without permission is identified, a disturbance program or disturbance data is/are written into protected software or data. During illegal dismounting, the disturbance program or data can be written in a core chip of a key part to achieve the purpose of preventing pirate. Software and databases disturbed with the method are changed completely and cannot be recovered at all, thereby ensuring the absolute security of the important data.