In May 2019 Australian graphic design tool website Canva suffered an attack that exposed email addresses, usernames, names, cities of residence, and salted and hashed with bcrypt passwords (for users not using social logins  around 61 million) of 137 million users. Canva says the hackers managed to view, but not steal, files with partial credit card and payment data. (Sourced from IT Security agency) 

Referring to the case given, list and explain 2 steps that can help prevent data breach like this.