There are many events when one has to email or send a message. In the modern days the mobile phone is the most useful device for exchange of such data that may contain messages, mails or images. Well, to get the perfect understanding of the data safety one must know how the data flows. As soon as a data is released from the device it is encrypted in certain technical form and when it reaches to its destination it is again decrypted. In the encryption, blackberry pgp is considered as most useful.