If you’ve had your iPhone for a while, you may have connected it to multiple wireless networks over time. This may also be the case if you travel frequently and connect to Wi-Fi networks in hotels, airports, and restaurants when you’re away from home. Regardless of whether you stay connected to these networks, your iPhone will continue to remember them and even sync their credentials with your iCloud Keychain.
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In this post, we'll explain how to remove known networks from your iPhone.
Saving wireless networks on your iPhone can be beneficial in general, as it saves you the time and effort of trying to remember their passwords in order to connect to them. However, saving a lot of known networks on your iPhone may not be such a good idea.
When you have saved the credentials of a network on iOS, your iPhone can connect to this known network without your knowledge, once you are in the network coverage area. If these networks are no longer secure, your device may be at a potential security risk. To avoid such mishaps, it is recommended that you remove known networks that you no longer use from your iPhone.
