A parent sets up a personal hotspot on an iPhone for their child's tablet. What encryption protocol does iOS use by default for personal hotspot connections, and what minimum security action should the parent take?

• A.iOS personal hotspot falls back to WEP on the default profile (the legacy cipher stays for older client compatibility); the parent should switch the security level to WPA3 by hand and rotate the passphrase afterward
• B.iOS personal hotspot uses WPA2 Personal (AES) or WPA3 Personal by default on modern devices; the parent should ensure the auto-generated password is not easily guessable and not shared publicly
• C.iOS personal hotspot runs open by default (the platform leaves the network unsecured until the owner intervenes); the parent should enable WPA2 inside the hotspot settings pane and choose a passphrase the tablet can hold in its keychain
• D.iOS personal hotspot encrypts each session with keys negotiated through iCloud (the pairing is scoped to devices signed into the same Apple ID); the parent should confirm that the tablet shares the account and should disable the hotspot for any device outside the family group