Is deleting files or doing a factory reset enough to protect my data before disposing of a device?

No, deleting files or performing a factory reset is not enough to protect data before disposing of a device. These actions only remove the file’s reference in the operating system while the actual data remains physically stored and recoverable using widely available data recovery tools. Studies have found that a majority of used devices resold or recycled still contain personal or corporate data because sellers relied on basic deletion or factory resets rather than certified erasure. Simply smashing or physically damaging a device is equally unreliable, since data can often still be extracted from undamaged chips or platter fragments. Truly secure disposal requires certified data destruction methods, such as software-based wiping compliant with NIST SP 800-88, degaussing, or physical shredding, ideally combined and verified with a Certificate of Destruction. This is the only way to guarantee that sensitive personal or business data cannot be recovered by anyone after disposal.