How is that worse than any other way in which a lock has been destroyed in place? ABS point out that this means it is at least feasible to unlock from inside whereas other makes seem to get so totally destroyed you don't even have that option.
At the amateur theatre I used to be involved with, the locks were specially selected so that extra keys could not be cut because of special blanks. Five years down the line, all keycutting shops carried them in stock.
So, you didn't know *everything*. Phew.
Multiple shear lines in the cylinder.
Yeah, but the Abloys came in after you.
The earlier keys were really easy to turn into a master.
DAMHIK.
security/question710.htm
Yup, used that on locks in a (different) hall of residence to stop cleaners coming in at an unearthly hour. Pick two pins with the same non- master shear lines but different master shear lines, and swap them.
Don't do what a friend did and take the thing to pieces to find out how it works.
There are many pingfuckits inside a multi-level mastered cylinder lock. We did get it working again, but there were a few bits left over ...
Is that one of those cases where you try to catch fifty parts at the same time as they all decide to fly for freedom?
A simple mechanical lock will have a key that can be copied, albeit at expense.
There are some door entry systems that operate on the "catch" side leaving the conventional key side still operable.
Just that for "secure locks" with limited supply of blanks tend to be expensive, and blanks exclusive for a limited time, and of course also expensive.
There are two different shear lines in each lock.
I made a jig, because we were doing quite a few (14 I think!)
That's the one!
Morris Minor gearboxes were good for that, especially when disassembled on a forecourt of concrete pads with gaps just larger than the ball bearings.
Retrieval tool turned out to be a screwdriver with a dob of grease on the end.
Worst one for me was a Humber Hawk gearbox.
I started by obtaining short lengths of mild steel in different sizes to act as keepers. I remember having to stick a complete circle of needle rollers to the inside of a bearing before refitting a shaft.
You really want a secure by design 3 star lock.
The yale one can get 3 stars but only with reinforced handle hardware. I can't work out if the magnum has any stars.
These are pretty good
They are not invincible but you probably need to pay a lot more for a better one.
The OP was worried about unauthorised copying of keys. Wouldn't the above technology be equally abused with the tag (keys) being scanned by a mobile phone and then being reprogrammed on tags available on Ebay for
10s of pence?
Serious door entry systems have a password and a RFID key/fob/card.
The secure bit is that each key is unique and if a party copies one it's obvious from records who has made the copy or is attributable to anyone gaining entry.
It's also easy to bar a key if there is a nefarious copy becomes known.
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