Does SSD automatically move data off (few) bad sectors? [closed]

Disks reports that my SSD "Disk is OK. 3 bad sectors".

Do SSDs automatically move data off of bad sectors, or should I assume I lost some files or data that were on those sectors?

Generally speaking, yes, the SSD firmware is smart enough to move the data off the bad sectors and avoid using those sectors in the future. The mere fact that the SMART data is reporting a non-zero bad sector count indicates the firmware is doing its job. As long as the number of bad sectors isn't increasing, you probably don't have too much too worry about - Crucial states that a couple bad sectors isn't necessarily out of the ordinary.. That being said, backups are never a bad idea.