Corruption can come from a failing SSD/HDD. The SMART status has become a complete waste of data that you can’t trust anymore. I’ve got a Crucial SSD that I’ve been using as a hot weekly backup. That mofo has been silently corrupting video/audio/archive files. The reason I realized it is because some projects I needed to resume/restore data from a previous backup started showing frame glitches, stuttering in audio tracks and errors while trying to open archives. SMART status reported that SSD as healthy without a single error. I did some test copying different files into multiple external devices, and issues were only happening with that SSD. SMART status is supposed to warn you before a storage device is about to fail. Never trust it and use redundant backup solutions if your data is important.