Data at rest
Data at rest in information technology means data that is housed physically on computer data storage in any digital form. Data at rest includes both structured and unstructured data. This type of data is subject to threats from hackers and other malicious threats to gain access to the data digitally or physical theft of the data storage media. To prevent this data from being accessed, modified or stolen, organizations will often employ security protection measures such as password protection, data encryption, or a combination of both. The security options used for this type of data are broadly referred to as data at rest protection (DARP).
https://en.wikipedia.org/wiki/Data_at_rest