Protection of data

- [Instructor] When developing a security plan…for your data, it's important to understand…that the data can be accessed or modified…at any point during its lifecycle.…This can occur when the data is being stored,…which is referred to as data at rest,…when the data is being process,…called data in memory, or when the data is being moved…from one location to another, called data in transit.…Whenever data is physically stored in a digital format,…it's referred to as data at rest.…For example, if you save a file to a hard drive…or a thumb drive, that data is considered at rest…when it's not being accessed.…

Data at rest includes information stored in databases,…backups, files, mobile devices,…and many other storage mediums.…To protect data at rest, most systems will rely…on symmetric or asymmetric encryption algorithms…or a hybrid of those two.…Data at rest encryption protections can also be classified…as disk level, block level, file level,…or record level encryption.…Disk level encryption is used to encrypt…the entire volume or disk.…