E4M

E4M, or "Encryption for the Masses," is a term commonly associated with the open-source disk encryption software known as FreeOTFE (Free On-The-Fly Encryption). It was developed to provide users with the ability to encrypt their data on-the-fly, ensuring that their information remains secure and private. The E4M project is designed for ease of use, catering to a wide range of users, from individuals wishing to protect personal data to organizations needing to secure sensitive information.