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Will this work is it wishful thinking?

Cutting medeco keys from credit card stock

https://www.wired.com/2008/08/medeco-locks-cr/

Wow! That is very interesting.

It does work, but there are some things you need to take into consideration before you cut the key.

The “news” that this could be done has been out for a while. BiLock keys can be made the same way.

Gordon

I believe it was MrPharmer2012 that made a bunch of keys this way many years back and posted about it here on the forum.

That Wired article is dated 8/8/2008 so it's old news now; that was pretty much the height of the "beating up on Medeco especially the M3" era.

This whole spoofing keys thing has moved on a bit from this stuff, there's much more emphasis these days on the ability to photograph a key from a distance (say, take a photo of somebody's keychain from across a carpark) and then 3D print the key in metal after having electronically messed about with the photographic image to account for the fact that you probably weren't able to get a shot of the key exactly flat.

From a purely philosophical perspective you can draw a historical line on this attack all the way from taking a wax impression of a key, through the method discussed in the article above, to the more recent photographic techniques - it's all about encoding the cryptographic data encoded on the legitimate key onto another tool, via some kind of intermediary medium and process. Fascinating stuff.

You have always been able to "file in" the angles on Medeco by hand. I did it in the late seventies when the shop I worked at put them on the doors. But we didn't have a machine that would cut them. I found a really old Yale blank that passed the keyway, duplicated the key on a standard key machine and then hand filed the angles. It worked great and everyone in the shop got a key. Apparently I didn't change the slope of the cuts.

Thank you every one for your insight.