2 users - 1 wireless connection

[High1]

Hello

If 2 users in the same building (home not office) share the same wireless connection (same provider, same security/wi-fi key), can either of those users see the online activity of the other one?

Thanks

[Geek-9pm]

The simple answer is NO.

The long answer depends on what security measures are in place.  Normally only input and output for a named used only goes to that user. In fact, you have to work at it to see what others are doing, unless have full administrative authority.

Otherwise, one user One can peek in on others by a deliberate violation of security.

Is this for a business?  Is this to monitor you children's activity?

[camerongray]

It's not particularly easy but there's definitely tricks that someone could do in order to intercept traffic from other users. Higher end enterprise systems tend to support client isolation features to avoid this but they aren't always enabled and generally aren't supposed by consumer networking equipment.

Normally only input and output for a named used only goes to that user.

The key word here is "normally" - if someone malicious wants to intercept traffic, it's still possible for them to do so.

[m.elkhateib]

AGREE WITH camerongray

as you can know by traffic and also u can stand between the other and the wireless connection then all REQ. will came to u and u are free to forward the result or change it

[Geek-9pm]

This link might be relevant:
https://medium.com/matter/heres-why-public-wifi-is-a-public-health-hazard-dd5b8dcb55e6

Maybe Better If You Don’t Read This Story on Public WiFi
We took a hacker to a café and, in 20 minutes, he knew where everyone else was born, what schools they attended, and the last five things they googled.