The last week before a trip fills up with packing, pet sitters and errands. The wireless gear humming in the corners of your house rarely makes the list, and that is exactly when it deserves a look. Most smart-home trouble does not begin with a targeted attack. It begins with a router that has not been updated in two years, a camera password set once and never touched, or a temporary door code for a contractor that never expired. An hour of tidying before you leave keeps those devices useful while you are gone instead of turning them into a liability.
Start With the Router, Because Everything Else Sits Behind It
Every camera, lock and plug in your home reaches the internet through the router, so handle it first.
Open the admin page — the address and login are usually printed on the unit or in the manual — and work through a short list. Install the latest firmware. Change the admin password if it is still the factory default. Turn off remote management so nobody can reach the settings page from outside your home. WPS should be off as well; push-button pairing is convenient, but it has a long history of being abused.
Then read your port-forwarding rules. If you opened one months ago to reach a camera or a storage drive directly, ask whether you still need it. Every open port is a service exposed to the internet for the entire time you are away. Where the router offers UPnP, consider turning it off unless something specific depends on it, since it lets devices open those ports on their own.
Cameras: Review Who Has Access, Not Just the Feed
Cameras are the devices people worry about most and audit least. Before you leave, log into each camera app and confirm three things.
The account. Use a unique password and switch on two-factor authentication if the manufacturer offers it. If your camera login matches an old shopping account, change it now.
The guest list. Shared access is easy to hand out and easy to forget. Family members, a former housemate, the neighbour who watched the cat in March — remove anyone who no longer needs it, and rotate temporary links and codes the same way.
The view. Point lenses at your own property. A camera that captures a neighbour's window or a shared hallway may not be lawful where you live, and rules vary by country and city, so check your local regulations rather than assuming. Decide too what each camera should do while you are away: continuous recording, motion alerts, or nothing. Alerts you cannot act on from another time zone only add noise.
Smart Locks: Batteries, Codes, and a Plan B
Smart locks are where a small failure has real consequences, so give them a physical check as well as an app review.
Start with power. Most locks warn well before the battery dies, but warnings arrive as notifications, and notifications get missed. Replace batteries that are anywhere near the low mark before you travel, not after the first alert reaches you thousands of miles from home. Then install pending firmware updates while you are present, so a re-pairing step does not land on the day your house sitter arrives.
Review the access list next. One-time and scheduled codes are the usual weak point: a cleaner's code with no expiry date is a permanent key. Set an end date on every temporary code and delete the ones you no longer need. Leave a physical key with someone you trust, and know how the lock behaves if the internet or the hub goes down. Many keypad models keep working offline, but app-only features such as remote unlocking may not.
Before relying on any smart device while travelling, ask the plain question: what does it do when the network goes away?
Segment the Network So One Weak Device Is Not a Doorway
Smart plugs, bulbs and budget cameras rarely receive security updates as often as your phone or laptop. Separating them from your computer limits the damage if one is ever compromised.
What separation looks like at home
- Put every smart-home device on its own network. A guest network works fine for this.
- Keep phones, laptops and tablets on the main network, away from the gadgets.
- Give the smart-home network its own Wi-Fi password, and never reuse it elsewhere.
- Block internet access for devices that only need to talk locally, where your router allows per-device rules.
- Use a unique password in every device app, with two-factor authentication where available.
If your router keeps things simple
Then use the guest network anyway, and switch off any option that lets guests see each other or reach the local network. A router too old to receive firmware updates is worth replacing, and until then, keep the number of internet-facing devices as small as you can.
Do Not Let Your Automations Advertise an Empty House
Presence is the other half of the job. Lights that come on at exactly 7:15 every evening for two weeks look like a timer, because that is what they are. Randomised schedules, lamps on plug timers in different rooms, and a radio left playing do more.
Two habits matter as much as hardware: never post travel dates or airport photos publicly, and pause the deliveries that would otherwise stack up on the step. A mail hold and a neighbour who moves your bins will do more for your home than most gadgets.
The Night Before: A Short Walkthrough
None of this takes a weekend. The evening before departure, run through these in order:
- Install any pending router and device firmware updates.
- Confirm admin passwords are changed, remote access is off, and no unused port-forwarding rules remain.
- Delete expired door codes and unused camera or hub shares.
- Replace low batteries in locks, doorbells and sensors.
- Check that lights and plugs run on randomised schedules, not fixed times.
- Verify two-factor authentication is on for the accounts that control your home.
- Leave a key and a phone number with one trusted person, and give the sitter only the access they need.
- Switch off anything that does not need to be online while you are away.
A final note on judgement calls: if you are unsure whether a device, cloud service or recording setup is suitable or lawful where you live, read the manufacturer's documentation and your local rules, or ask someone qualified rather than guessing. Save this list somewhere you will find it again. The second trip takes ten minutes.
Photo: geralt / Pixabay
