The origin of my post with the Telekom street cabinets was actually the security concerns regarding an external APL house connection. Besides, there are quite a few here who prefer a LAN in the house over WLAN due to security concerns.
Whoever wants to do it and is equipped with enough criminal energy can tap into practically any house connection. They do not have to enter the property or manipulate a house connection.
If, for example, I want to purposely disable an alarm system or a surveillance camera, I cut the connection in the street cabinet.
I cannot simply take the router in the house off the network without effort. I am not a telecommunications freak, but you can certainly do quite a bit with the accessible connection points of Telekom.
I have been wondering about such security gaps for many years now.
But generally, some people should rather think about their financing.
"The property energetically belongs to the old iron and must soon be completely renovated due to legal regulations, this reduces its value. Our advice: If the connection financing is due soon, you should quickly sit down with the bank you trust and explore whether the property is still accepted as collateral. Further surcharges or additional equity could be the result."
And here, not properties from the 70s are meant, but everything before the year 2016!