Data at rest in information technology means data that is housed physically on computer data storage in any digital form: data on a PC, laptop, pad or mobile device, server, cloud storage, file hosting services, databases, data warehouses, spreadsheets, archives, tapes, etc.

Data at rest can be password protected, encoded, encrypted, tokenized, federated, etc


While data in transit is easier to hack, data at rest is more valuable than data in transit because it often has a higher level of sensitive information. And just because data is at rest does not mean it is not moving. Many data breaches happen due to a lost USB drive or laptop.