Meredith should first try to log in to Airport Wi-Fi if she has the credentials as this Wi-Fi would be more secure and therefore more desirable for paying bills as this is a sensitive transaction that may expose her personal information to identity theft. However, most regular passengers at the airport may not have the credentials t log into the airport Wi-Fi and this is why the airport makes a free Wi-Fi service available to customers. However, Meredith should be aware that anyone will have access to the free Wi-Fi and therefore signing on to that Wi-Fi can put her personal data at risk.