what is remote backup

A remote, online, or managed backup service is a service that provides users with an online system for backing up and storing computer files.

Online backup has many advantages over tradional backup methods:

Remote backup does not require user intervention. The user does not have to change tapes, label CDs or perform other manual step
Online backup maintains data offsite. Perhaps the most important aspect of backing up is that backups are stored in a different location from the original data. Traditional backup requires manually taking the backup media offsite
Your data is stored in an encrpted format that can only be accessed by you
Data storage abroad could be an advantage too
Some remote backup services will work continuously, backing up files as they are changed
Most remote backup services will maintain a list of versions of your files
Most remote backup services will use a 256-bit encryption and sent shrinked data packages via a https connection.