Keyless access systems

I suspect, however, that a scanner for an access system is likely to have a different quality than in a run-of-the-mill HP notebook. The conditions under which it has to operate are quite different.

If you want to discuss security, you always have to compare the available systems against each other. Fingerprints are the weakest form of biometrics, but for the home locking system imho completely sufficient. Compared to the physical key, I would consider them more secure, as there is no risk of loss and no relevant risk of theft. Thoughts about duplicating fingerprints etc. probably belong more in a crime novel, because doing such a thing requires experience and special criminal energy. If someone wants to enter the house, they probably will not acquire the touched glass in the restaurant to take a fingerprint from it, but rather buy a crowbar and/or a hammer. A physical key is significantly easier to steal and duplicate.

That is wrong in this case. An incredibly high effort is made here for security. These fingerprint sensors differ greatly from the usual sensors in most common notebooks and regularly even pass the security checks of my employer, a very large and globally operating corporation that applies very high standards to the security of its IT. We have a special department that does nothing else but check such systems for security. This has nothing to do with the scanners implemented in Windows; everything runs within the scanner chip here. Evaluation, storage, setup, all within the sensor platform. With these systems, development data in the billions is encrypted and carried around the world, and not just by our company.

What should be different about the conditions under which the sensor has to work? Because of weather influences? That is really the smallest challenge. Making such systems secure is the actual challenge.

The market simply offers what is demanded. And since the typical home builder (still) lets himself be reassured by simple manufacturer promises and there are little to no independent and/or published tests on this, the manufacturers have no reason yet to upgrade. Only when the sales figures of insecure systems stagnate will something be done, that's unfortunately how it works.

But again: you also have to keep the target group in mind. It is about preventing a break-in into an already insecure house. Installing tamper-proof biometric scanners now is also a financial consideration.

Edit: too slow regarding the target group^^ But one more thing: Depending on the sensor, it is even extremely easy to trick a "normal" fingerprint scanner; you don't even need special equipment for that. This has even been demonstrated here by the criminal police.

But that also means that the security of the system is limited in favor of recognizability.
As the area of the utilized scan increases, security rises, but comfort decreases because the frequency of rejections also increases.
But partial prints are left almost everywhere, so personally, I would prefer higher security. Everyone has to weigh that for themselves if they even think about it.

The strange thing is that my husband's fingers are recognized very poorly. They're actually as damaged as mine, but the door rarely opens with the fingerprint scanner for him, while it lets me in 99% of the time. He now always uses the remote control but carries the keys anyway, since he needs at least one for the car and garage. What could be the reason that the door recognizes my fingers well but his so poorly?

So after yours work and his don't, the only remaining theory is that he now places his fingers differently than during the programming. I would simply delete them again and have them reloaded. Such unusual movement sequences become easier over time, and the body then tends to perform them a bit differently, more relaxed. I would give it a try.

ah thanks, we'll try it that way!