SSDs can lose data if left unpowered for extended periods, with retention times varying by NAND type. Most consumer SSDs, particularly those using QLC or TLC NAND, are not reliable for long-term storage. It's essential to have a backup plan to protect your data.

Backup strategies require careful planning and understanding beyond mere data copying. It's crucial to assess risks, choose between full disk and individual file backups, and utilize snapshots to ensure data consistency and recoverability. A well-structured backup policy tailored to specific needs is essential for data protection in today's digital landscape.