Flash/USB Drive Erase Tool

[transphasic]

Have a Samsung T7 I need to return and I used it as a backup drive for few days. I used Apple's Disk Utility to erase it, but that doesn't seem to clear off the data on it, just the file system so a hacker could still access the information on the device.

Anyone know of a (preferably free) utility that will make the data irretrievable, like writing zeroes to the cells or scrambling all of the data on it?

 

[hobowankenobi]

All SSDs are typically not fully erased as it wears the drive (reads and writes are limited). The easiest/fastest way is to encrypt the drive, and then erase it. Full write-up here. Pulling the encryption key (decrypting the drive) effectively destroys all data.