The kids have apple devices and their dad uses the Wi-Fi sharing to hack our router and break the network disable the cameras and get into accounts how do we stop the kid’s devices from being able to share the password? I feel like this is a huge security vulnerability apple has created
Contact counsel or local police, as what you are reporting can be considered a civil or criminal matter in at least some jurisdictions; unauthorized access to electronic systems can be frowned upon, and counsel can certainly find these alleged shenanigans useful in some legal contexts.
Having the Wi-Fi password alone is insufficient to cause issues for other clients of the Wi-Fi network, so something else appears to be vulnerable and exploited in this network configuration.
Options for the network include setting up a kids’ network and segmenting the rest of the network devices off of that network and probably that VLAN or subnet or DMZ. Basically, a parallel Wi-Fi or guest network setup, but the kids are the guests here. This is feasible with mid-grade and higher networking gear.
Another option is to set up IEEE 802.1X / EAP / RADIUS and authenticate all clients accessing the network. This is more work and more complex (and more capable), and requires higher-end networking gear, so probably not a great solution here.
Another option is setting up MAC authentication, though MAC addresses can be spoofed. Some low-end and most mid- or higher-range Wi-Fi routers will support this.
If you have access to a Mac, the best (technical) way is probably by installing and using Apple Configurator app on a Mac to create a new (mandatory) profile with the Wi-Fi setup, and cabling to the iPhone or iPad and loading that profile. I don’t have a way to test this, but it should get access to the Wi-Fi network or guest network, without also providing the user with the Wi-Fi password. And what the user doesn’t have, they can’t share.
Some other details, two small, and one immense:
… Blocking Wi-Fi password sharing won’t block looking up the password and sharing that the old-fashioned way, too.
… Apple does not provide a way to block Wi-Fi password sharing, absent device management or device supervision, and that—past potentially creating and installing a Wi-Fi password profile—is probably more than you want to tangle with.
… Based on your posting, your entire network is seemingly massively breached too, and quite possibly persistently. A breached network is a fairly large project—hassle—to decontaminate and to reset and update and reconfigure everything, and to reload. Unauthorized hardware connected or unauthorized software installed on key systems, or deliberately-insecure configuration settings, can potentially be how this purported unauthorized network access is arising, as the reported issues are rather less likely to arise (solely) via Wi-Fi password disclosure.
Contact counsel or local police, as what you are reporting can be considered a civil or criminal matter in at least some jurisdictions; unauthorized access to electronic systems can be frowned upon, and counsel can certainly find these alleged shenanigans useful in some legal contexts.
Having the Wi-Fi password alone is insufficient to cause issues for other clients of the Wi-Fi network, so something else appears to be vulnerable and exploited in this network configuration.
Options for the network include setting up a kids’ network and segmenting the rest of the network devices off of that network and probably that VLAN or subnet or DMZ. Basically, a parallel Wi-Fi or guest network setup, but the kids are the guests here. This is feasible with mid-grade and higher networking gear.
Another option is to set up IEEE 802.1X / EAP / RADIUS and authenticate all clients accessing the network. This is more work and more complex (and more capable), and requires higher-end networking gear, so probably not a great solution here.
Another option is setting up MAC authentication, though MAC addresses can be spoofed. Some low-end and most mid- or higher-range Wi-Fi routers will support this.
If you have access to a Mac, the best (technical) way is probably by installing and using Apple Configurator app on a Mac to create a new (mandatory) profile with the Wi-Fi setup, and cabling to the iPhone or iPad and loading that profile. I don’t have a way to test this, but it should get access to the Wi-Fi network or guest network, without also providing the user with the Wi-Fi password. And what the user doesn’t have, they can’t share.
Some other details, two small, and one immense:
… Blocking Wi-Fi password sharing won’t block looking up the password and sharing that the old-fashioned way, too.
… Apple does not provide a way to block Wi-Fi password sharing, absent device management or device supervision, and that—past potentially creating and installing a Wi-Fi password profile—is probably more than you want to tangle with.
… Based on your posting, your entire network is seemingly massively breached too, and quite possibly persistently. A breached network is a fairly large project—hassle—to decontaminate and to reset and update and reconfigure everything, and to reload. Unauthorized hardware connected or unauthorized software installed on key systems, or deliberately-insecure configuration settings, can potentially be how this purported unauthorized network access is arising, as the reported issues are rather less likely to arise (solely) via Wi-Fi password disclosure.
If this is a spouse, or minor child posting about how to circumvent a father's head of household control of the internal premise network, while under the same roof, we cannot help you. That is an internal parental matter.
If this is a single-parent household where the Father is separated or divorced, living outside of the household, and doing what you describe, without the other parent's permission, then that is particularly applicable to what MrHoffman posted. The initial step would be changing the router administration password and then the passwords of each child's Mac with express guidance to not share that information with anyone.
How to block Wi-Fi sharing for router
