When you change the wireless 2.4GHz and 5GHZ credential, a hacker cannot access router
What happens when the credential is changed ?
Changing the wireless 2.4GHz and 5GHz credentials can significantly hinder the actions of a hacker by disrupting their access to a network.
When you change the wireless credentials, all existing connections to your network are immediately terminated. This means that any hacker who has previously gained access to your network will be disconnected and will need to re-authenticate using the new credentials.
With the new credentials in place, any hacker attempting to access your network will need to know the updated password. If they don't have the new password, they will be unable to connect and gain access to your network resources.