Although PGP is believed to be secured, there are too many examples of backdoors in encryption software.
Reference link:
RSA Tells Its Developer Customers: Stop Using NSA-Linked Algorithm (Wired)
http://bit.ly/183lC35
This video will show you how to defeat any backdoor access that might be in PGP encryption software. Remember, if it is worth encrypting, it’s worth eliminating possible backdoors.