secure erase from an SSD

[zoran]

Whats the best way to erase everything from my 1TB Samsung Evo860 ssd ? Im going to sell it and i want all data to be erased completelly. Samsung offers their app (Magician) but it will not work on Macs. What would you do?

 

[MarineBand5524]

Here you go.

How to Securely Erase Data from Your Mac and External Drives - The Mac Security Blog

You may need to erase the drive in your Mac, or external drives, when you sell your computer or dispose of drives. Here's how to do so securely.

www.intego.com

 

[Basic75]

Is the volume on the SSD encrypted?

 

[Fishrrman]

(deleted earlier post, because this may be more useful to the OP)

This page offers a method to do it:

Erase a Hard Drive Using the Mac Terminal

While the Terminal may not be the first thing you think about using when manipulating disk, it can give you more options and control over your disks. And, if nothing else, it’s a good tool to keep …

easyosx.net

Trying it right now on an OLD (PATA) drive... seems to work...

Followup:
It took a while (about 30 mins for a 160mb drive, yes megabytes), but seems to have succeeded.