Many people assume their apartments are secure from intrusion. Delusional.
New apartments have these latest fad - card and PIN access.
Basic Locks
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Most VNese outside doors use Euro-style locks. These are simple to spot as the lock mechanism outline is easily discernible as they are removable.
To remove, undo the top and bottom screws holding the lock plate to the end of the door - where the latch tongues stick out. You will then see a screw located centrally in the panel under it.
Loosening this screw allows the lock mechanism to be removed from either side of the door.
A replacement lock module is around VND90,000. The German ones are more expensive BUT far harder to pick.
Flat key locks can be picked in about 30 seconds, the 'curvy' keys are much harder to pick.
When you move, take the lock that you purchased with you - at least you know the new Landlord won't have a copy of the key!
Electronic Locks
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Impressive as hell, you need a card and a PIN to operate the lock. You can have several card/PIN combinations.
Problem - the apartment owner AND the building manager often have cards, too!
Most electronic locks also have a regular key slot. Get the key, and then you can make your place secure.
Start by getting additional keys cut. Then, using a small screwdriver, or Allan key, undo the battery cover on the apartment side of the door - AND REMOVE THE BATTERY. You are now secure.
Funny story. I made my electronic lock secure. Then, a while later, a technician shows up to 'repair' my lock. I asked who had sent him; he replied the building manager. I declined his services.
The building manager explained he was 'checking' apartments and he found his MASTER card no longer worked in my lock. I explained the batteries are flat (!!!) so he said he explained that's why he sent the lock technician!
I said NO ONE enters my apartment UNLESS I allow it. He said Foreigners are always the ines causing him problems!
Door Access/Control systems
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Where my office in TP HCM is, in a condominium, there is a magnificent Door Access and Control System. There is also a security guard in the lobby.
I spoke to the manager and asked them why the Door Access was positioned half way along a wall and preventing furniture from being placed there. She explained there were emrgency functions as in the case of attack - push a button and the guard is supposed to appear (he didn't).
She also explained the guard can ACTIVATE THE INSIDE ACCESS PANEL CAMERA SO THEY CAN SEE WHAT'S HAPPENING IN YOUR APARTMENT. This explains why the unit is positioned so it can see the living room, kitchen and the hallway to the bathrooms and bedroom. They can also HEAR what's going on.
To disable this 'peeping' feature, Google the name of your Door Access system and search for a User Manual. It usually shows where the microphone and the camera are located.
Technicians might want to search for the technical manual so they can make an even better job of disabling the unit.