Steganography is a science and art which explains about how to hide secret information in to another media that make people does not realize the existing of this message. but steganography has a significant weakness, that is the operation has been widely known. therefore the writer tried to combine two methods; the first method was least significant bit for steganography and the second was substitution monoalphabetic cipher for cryptographic. the combination of the two methods was carried out into media picture 24 bit due to this media was not used up the resources memory. so that, it is very possible to send image media through email. by applying the two methods, it is hope that the message's security is safe from the disturbance of other people who does not have authority to read the message.