International Journal of Emerging Technology and Advanced Engineering (IJETAE)
Nowadays, securing the user's information is very important for internet based business. On one hand, the companies can mine data to extract knowledgeable information through data collected from the users. On other hand, the user information that contains sensitive data should prevent from the hackers. PPDM is a popular search area that \"Develops algorithm for modifying original data in some way, so that the private data and knowledge remain private even after mining process.\" At the same time, the algorithm tries to maintain trade-offs between data privacy protection and data mining utility. There are many techniques used for PPDM like, cryptographic technique, perturbation technique & data modification technique.