PGP (Pretty Good Privacy) is currently the best and most popular data (including texts, e-mails, files, directories, partitions, and whole disk) signing, encrypting, and decrypting program, developed by Phil Zimmermann in 1991. Its source code is open, and it has withstood the challenges from thousands of top hackers around the world. It turns out that PGP is still the most secure encryption software in the world for now (until the popularity of quantum computers, I think). Without a password, no one can decrypt the data encrypted with it!

Folder Lock is a fast, high-intensity file/folder protection software. It can protect/encrypt any type of files, folders, drives with password access control in seconds. The protected file/folder is not only hidden, also cannot be deleted, thus ensuring a high degree of security. This not only can prevent your files from being peeped easily or illegally obtained by others, also can protect these files from being invaded or stolen by viruses, trojans, worms, spyware.