Backup strategies are essential for protecting data from loss due to hardware failures, accidental deletions, or cyberattacks. Common methods include full backups, where all data is copied, and incremental backups, which only save changes made since the last backup. These strategies can be implemented using various storage solutions, such as external hard drives, cloud services like Google Drive or Dropbox, and network-attached storage (NAS) devices. Regularly testing backups is crucial to ensure data can be restored when needed. Additionally, following the 3-2-1 rule—keeping three copies of data on two different media, with one copy offsite—can enhance data security. This approach helps mitigate risks and ensures business continuity.