6 Steps to Protect Against a Data Breach

2. Change all passwords to randomized, stronger ones you don't know. All too often, attackers can easily gain access to a system due to a default password being left in place after installation or using a password that's reused in multiple apps. Ensure that every system and service has been updated with a strong, unique password, and that passwords are changed regularly, including when employees leave. You never want to know passwords, because if you or your employees know them, they can be phished from them. Consider implementing a password management system with single sign-on to help everyone comply with the company's security efforts.