Compatible devices:
  - Nokia 9500 Communicator
  - Nokia 9300 Communicator

Do you care about confidential data on your smartphone, and you don't want to share this very important information? You need fileguard! It will integrate into your system and become a guard for your special files! fileguard allows to decrypt files on the fly and encrypts them again after the view/edit operation is finished. E.g. when you try to open an encrypted document file, fileguard offers to enter the password, decrypts the document and starts Word application for it, after Word is closed the document will be encrypted automatically.

不错，好东西，谢楼主