Cryptography is the art or science encompassing the principles and methods of transformation an intelligible message (Plain Text) into one that is unintelligible (Cipher Text), and then retransforms that message back to its original form. For this transformation (or) conversion some critical information called as key (secret key) is used by the sender and receiver. Security mechanisms involve more than a particular algorithm or protocol. They also require that participants be in possession of some secret information (e.g., an encryption key), which raises questions about the creation, distribution, and protection of that secret information. There also may be a reliance on communications protocols whose behavior may complicate the task of developing the secret mechanism. Here a mechanism is proposed for data security based on secure embedding Algorithm. This approach overcomes a major weakness in previously proposed techniques, by reducing probability of decoding errors. An Implemented results shows that our techniques delivers the data in secure manner without any alterations.