The process of ensuring data is consistent across multiple devices or platforms by automatically updating files or information. For example, syncing your phone and computer ensures both devices have the same data, such as contacts or photos.

Syncing data across devices allows for smoother access to information, especially for users who rely on multiple devices (e.g., students accessing files on school computers and mobile devices). However, syncing requires strong internet access, which can be a barrier in low-bandwidth areas. Moreover, syncing services can raise privacy risks if sensitive information is stored insecurely in the cloud.