Don't send passwords or account login credentials over public or unsecured Wi-Fi networks.
Never, ever send account and password information over an open (unsecured) wireless connection. You are broadcasting to everyone within the radius of your wireless signal, which can be several hundred feet, all of your personal information and account information. They can use this to compromise your accounts (e.g. email, financial, system/application access), steal your identity, or commit fraud in your name.
