Jpegx is a modern day application of steganography. It will encrypt and
hide messages in jpeg files to provide ample medium for sending secure
information. The images remain visually unchanged but the code inside is
altered to hide your message. Anyone with the Jpegx program could read
your message as long as they know the password that you encrypted it with.
Password Bypass Vulnerability:
JpegX is prone to a password bypass vulnerability. When no password credentials
are supplied if using the JpegX wizard to decrypt, encrypted data contained in
JPEG files JpegX will decipher the file regardless. This vulnerability may lead
to sensitive information disclosure. Users should upgrade immediately.
James Bercegay of the GulfTech Security Research Team.