Security key at the front door, yes or no?

is a solid lock. We will probably go for the Kaba Penta Cross. However, our doors operate with motor locks and we also have different cylinder types (Swiss 22mm round and also Euro standard)...

I think burglars pay more attention to other things. It is important to use a system that still has long patent protection. The Kaba from or the Penta Cross are also difficult to duplicate using photos and 3D printers. As always, it must be a holistic security system. It’s no use having a great lock if you can "break through the wall," or the patio doors are simply glazed and not even monitored...

That's right. Very few people nowadays enter through the front door.

@11ant I think the burglars pay attention to other things.

The good old model from the Erik Ode crime series, which still owed the name burglar to the crowbar, has long been retired. Today's professional has a trained eye for which keys are worth copying. 3D scans are quick, and the printer provides the copy even for those who cannot obtain original blanks.

That's right. Nowadays very few come through the front door.

At least no longer in first place by force; criminal energy is becoming "smarter," "more digital," and follows the trend towards "4.0."

Most burglaries are still analog and occur in poorly secured houses. The professionals with 4.0 knowledge are not specialized in single-family homes but in more lucrative targets. The two mentioned locking systems are simply not so quickly reproducible by 3D printers. Those who want to push it (mechanically) to the extreme can take a look at the Stealth Key. I also wouldn't know where a burglar should see my key. I only take the key out when I unlock the door. In the new house, I don't take one at all because of the fingerprint... Overall, the concept has to work together. Prefer corresponding protection classes for windows and doors, alarm system, motion detectors, cameras, dog... You can always get in anyway. The question is only how high the effort and the risk of detection are.

I would be interested in a statistic about how many break-ins happen through the front door. The weak points are probably somewhere else. I’m curious when the first ones will break in through aerated concrete instead of the secured windows and doors.

It is mostly patio doors or easily accessible windows. The burglar is generally rather lazy. If it doesn’t work here, they go to the next house... and there are plenty of those. Many things often recommended even by the criminal police advisory service are completely exaggerated and usually do not do justice to the very individual situation. Nobody breaks into a single-family house through a visible front door; you wouldn’t even have to lock it. In contrast, tilt windows/patio doors etc. are very relevant. In the end, as with topics like heating, windows, etc., there is no ONE solution.

Good question! Burglars break in where it is easiest. Classics are balcony doors, tilted windows, basement windows. Front doors can also be opened very quickly with the wrong lock – whether with a lock pick (cheap cylinder) or by "pulling" the cylinder, which then breaks at the thinnest point (no anti-pull protection). Breaking windows is also a popular method but tends to be too loud. Glass cutters are also used, but then by professionals who carefully choose their targets. In Cologne, there is a master lockpicker who offers door openings on the side for a small fee and opens over 90% of locks without damage.

I fear that one or the other crime novel has been incorporated here. True, where it is easiest!!! That is the rule. Front door (in a single-family house – not a condominium) no, pulling cylinders etc. happens in residential complexes with individual apartments. Breaking windows in residential buildings is virtually completely ruled out. Of course, there are all kinds of specialists and every case has happened at least once. Nevertheless, I would rather advise going by this: What is common is often common – what is rare is rare. Otherwise, one would have to guard against every theoretical possibility of burglary and then it becomes unpleasant and unpleasant.