Unauthorised access to my WiFi network

[#1]

I have a shared hallway at my house. My router arrived but the box is just a cardboard box that anyone can open. Can I find out if anyone else is accessing my new wifi if they had opened the box and taken a photo of the network and password before I got my box and took it into my house?

[#2]

@JJB111 Welcome to the Plusnet Community Fora.

If you log in to the Hub 2 Advanced/Wireless page you can change the wireless SSID name and password. That will stop others accessing it wirelessly.

[#3]

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@JJB111 wrote:
... My router arrived but the box is just a cardboard box that anyone can open. Can I find out if anyone else is accessing my new wifi if they had opened the box and taken a photo of the network and password before I got my box and took it into my house?

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@JJB111 

I just checked my PN router box which has sat unopened/unused since it arrived a year or three ago, and unless things have changed, your box should also be sealed with shrink wrap.

Then again, I suppose somebody in the house might have access to a shrink wrapper ... 

[#4]

Very many thanks

[#5]

Mine was just the cardboard box without the shrink wrap!