Data breaches are a common cause of account hackings. Often times, the breaches go undetected and people will never know their data was stolen. Attackers often post breached data online in data dumps. This is a way to show off that they were able to hack a database and sometimes the data is sold for money. This data can be used to hack into your accounts and drain your money. A way to prevent this is by using multi-factor authentication. The most commonly used type is 2-Factor Authentication which prevents hackers from getting into your account. It is recommended that you use 2-factor-authentication on all of your accounts.