Computer Hacking Forensic Investigator (CHFI) Practice Exam 2025 – The Complete All-in-One Guide to Exam Mastery!

A steganographic file system is primarily focused on the practice of hiding information within another form of data so that it remains undetectable to those who do not know where to look. This technique is often used alongside encryption, which means that data is not only hidden but also secured to prevent unauthorized access. By embedding secret data within a host file—such as an image, audio file, or even a document—users can conceal their sensitive information effectively from prying eyes.

The other options describe distinct concepts that do not align with the definition of steganography. Compression pertains to reducing file size, error detection relates to ensuring the integrity of data through checksums or similar methods, and sharing formats focus on facilitating file exchange without necessarily hiding or securing the content. These aspects do not involve the dual functionality of hiding and protecting information inherent to steganographic systems.