Best software to securely erase USB flash drives these days?

On 18/02/16 12:29, Mr. Man-wai Chang wrote:
On 2/18/2016 4:43 AM, Lynn McGuire wrote:

A two pound hammer works nicely.


What if you wanna sell it in 2nd-hand market? Could you offer tools that
GUARANTEED a wipe?


Who would be interested in buying a second-hand flash drive? You are
talking about something that typically costs a few dollars new. Even
for the more expensive drives, by the time you are wanting to sell it
there are bigger and faster devices on the market for a fraction of the
price you first paid for it.

/Giving/ them to others for re-use is fair enough - and typically you
don't /give/ away things to just anybody. So guarantees are neither
possible nor necessary.