Using a secure and unique password for your account helps reduce the risk of your account being hacked, but usernames and passwords alone are not enough. Do a step further with two-factor authentication (2FA) if you need to strengthen security of your accounts. Instead of using SMS for 2FA, there are a few apps that generate codes on your mobile phone to verify your account when you log in. Google Authenticator is one of them that generate verification codes without a data connection. It works with many other providers and accounts besides the Google Account.