Completely "secure wiping" a USB?

Is there a way y’all recommend to completely “secure erase” or “secure wipe” a USB flash drive?

I realize that it’s probably not great for the lifespan of the drive to do this with any real degree of frequency, but if I want to give a large-capacity drive to somebody else and I want to be sure that the data I put on it previously is gone, is there a good way to do that?

Disk Utility. (Select the drive, as opposed to any specific volume under it.)

Click on “Security Options….” so you can select a secure erase. The caveat is that even on a small device these sort of “write garbage, delete it, write garbage, delete it” loops can take a while, and on a big drive it can take a while.

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Thanks! It never ceases to amaze me how much cool stuff winds up being built-in once I know where to look. :smiley:

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