You're right that rm won't be enough, and the "Success!" isn't really a success.
But likely shred won't even work, because SSDs overwrite other blocks when you perform a write operation, for wear leveling. I'm not sure if there's any hope of erasing something from an SSD besides physically destroying the SSD.
But likely shred won't even work, because SSDs overwrite other blocks when you perform a write operation, for wear leveling. I'm not sure if there's any hope of erasing something from an SSD besides physically destroying the SSD.