Which method can be used for the storage of physical backups for data security?

Storing physical backups in a fireproof box is a highly effective method for enhancing data security. This approach provides a physical barrier against environmental hazards such as fire, which can potentially destroy both the primary data and any backups stored on-site or inadequately protected. Fireproof boxes are designed to withstand high temperatures for a certain period, ensuring that critical information remains intact during unforeseen events.

This method also allows for physical control over the backups, as they are stored securely, preventing unauthorized access. In contrast, other methods may not provide the same level of protection. For instance, leaving backups on the same device poses a risk of total data loss if that device fails or is compromised. Cloud storage has its own benefits, such as remote access and recovery options, but it is not a physical storage solution and is subject to internet and service provider vulnerabilities. Finally, using email as storage lacks reliability, as emails can be deleted, lost, or compromised, making it an unsuitable method for storing important backups securely.