Smart-lock security.

Choose the code well

• Use a random 4‑ to 6‑digit code, not a house number, year, or a line down the keypad (2580).
• Worn or discoloured keys give away which digits you use — pick codes that spread across the pad, and clean the keypad occasionally.
• Give guests and tradespeople a temporary code, and delete it when they're done.

Set up the lock

• Change the default/installer code the day it's fitted.
• Keep the lock's firmware updated, and put smart locks on a separate guest Wi‑Fi network.
• Enable entry alerts so you know when the door is opened and by which code.

Keep a backup

Battery‑powered locks fail flat at the worst moment — keep a physical key or a backup entry method, and store it somewhere that isn't next to the door.