Pin ejection / drain holes in SFIC (Best) cores

I'm still learning IC Cores, so I could'nt honestly tell you if that modification would work. Very interesting though.-thanks, goma

Sure there is.

And why aren't most SFIC cores designed this way in the

Because it would just require a different type of tool.

The attack has been well known for quite a while, and is

This is not a big problem.

I don't see any problems. I.e. I don't see any function for the material removed by your Dremel tool (wonderful gadget, isn't it?)

Perhaps this wasn't considered to be much of a threat in practice? There are a number of other weak points (e.g. without making or buying any specialized equipment, the small piece of metal which retains the core can be drilled away.) In addition, picking a well made SFIC isn't all that easy, even if mastered, compared to the typical residential front-door lock (which, in practice, is seldom penetrated by picking.)

I've seen tension wrenches for control shells in catalogs. So I agree that it is well known.

It is pointless. These tools are not the only way to pick the control shear.

Are you suggesting that there's a different non-destructive technique for control shear line picking than putting torque on the control ring (or some other way to do it besides engaging the ejection holes)? That would be very surprising if true, and I'd be most interested in hearing about it.

Yes it is true but you are probably one of the last people I would ever share anything with.

Do tell.

In this forum you are right. As for questions about defeating security you will notice that I personally haven't ever asked such questions on this forum (with all the money I have invested in reference materials and training I would be pretty dissapointed about having to ask very often anywhere). Not to mention that compromising locks makes up a small part of my job and is used as a sales tool as much as anything else. In this case I was not really asking for an answer since there isn't one. As Roger well knows he was blowing smoke with his vague assertion regarding other effective SFIC control tensioning methods. There are no others that are effective and damage free other than that which has been clearly described.

Wasn't sniping at you in particular, just blowing off steam. Apologies...

I'm not willing to assume either way.

There are no other reliable effective methods w/o damaging the lock.

Yes there is. Qualifying this only by defining reliable and effective as equal to the locksmiths ability to pick the control with the comb tool.

Of course when asked for the method you will refuse on security grounds, reasonable if you really have a viable method. So if your method is for real post it to TNL where access is restricted and call it SFIC control shear picking or something similar that way others myself included can comment on it's validity. If your method is truely as real world effective as the method already discussed (I will admit right now that the method already discussed does not always work with all locks and is usually not the most practical method so you're method need not be 100% effective only equally so) I will be more than willing to admit that I am wrong.