The disk in question is disk04 - a 128 GB SSD drive in an external USB enclosure. I booted the Macbook from a X.11 USB install drive and there was an internal SSD drive as well. a simple fdisk ...

If the drive is relatively newish, it should support the ATA Secure Erase function. If so, use the manufacturer utility or another utility that supports ATA Secure Erase and it will wipe the drive ...

BCWipe Total WipeOut Supports User Data Erase Command for NVMe to Meet NIST Purge Requirements "The NIST guidelines for media sanitization are widely accepted and followed internationally, but they ...