What is Disk Encryption?

Disk encryption is a security measure that involves encoding data on a disk or disk partition using encryption algorithms to prevent unauthorized access to the data.  Disk encryption encrypts the entire disk or partition, including the operating system, applications, and user data. Disk encryption is used to protect data stored on laptops, hard drives, and other storage media against unauthorized access, even if the device is lost or stolen.

There are two main types of disk encryption: full disk encryption and file/folder encryption. Full disk encryption encrypts the entire disk or partition, including the operating system, applications, and user data. File/folder encryption, on the other hand, only encrypts specific files or folders.

Disk encryption can be implemented in software, using encryption software that is installed on the device, or in hardware, using an encryption chip or module that is built into the device. Disk encryption is often used in conjunction with other security measures, such as strong passwords and access controls, to provide an additional layer of protection against unauthorized access.