Is this accurate? Anyone who has your passcode and access to your device can takeover your iCloud account by resetting the account, lock your other devices, an

Is this accurate? Anyone who has your passcode and access to your device can takeover your iCloud account by resetting the account, lock your other devices, and access any passwords you have stored in iCloud keychain If so, this seems like a massive security liabilty, and grounds for deleting all icloud keychain passwords.