Is it useful to install an anti theft door on the stairs without permission?

There are high-end anti-theft doors, and the cost of locking the anti-theft doors for ordinary families is still high, consumers do not accept it, and the anti-theft performance is poor and the failure is high.

Yes, specifically from the level of anti-theft, it is very high, the steel plate is thickened, and the configuration is strengthened with a high-level anti-theft lock. Higher than the level of Grade A security door. Our Changling Group's security door has these functions.

It's still useful to keep you safe when you open the door to confirm when you're not sure about the visitor.

It's good to change the lock cylinder, if you do it yourself, you can disassemble it yourself to see the size of the lock cylinder, and then Taobao can choose the lock cylinder in your hand, which requires strong hands-on ability, and if you don't want to do it yourself, call to change the lock, first C-level lock cylinder.

Yes, it is illegal to enter someone else's house without permission, let alone pry someone's door.