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Chris Bacon wrote:
Sammy wrote:
I like to keep my old bank cards intact and use them for jobs around
the house. My worry is that the data on the magnetic strip can still
be read.

What is the best way to destroy that data without messing up the card
for D-I-Y work.

Scrape it off with a sharp knife.

What do you use the card for, AAMOI?

They're good for mixing epoxy on, applying polyfilla, extra shims for
tile spacing. Lots of other uses too.

In addition to using old credit cards, buy a new deck of playing cards to
use for some of these purposes. You can use two or more at a time to
increase stiffness. We've done that in certain hobby building.

As Alex says, your pin or password are not on your card. Running a small dc
magnet should remagnitize the strip unreadable. Might take a good one, run
a magnet over it, and try it in a reader. I am betting it won't get read.

Dave C