Why It's Important to Change Default Credentials
Security best practice guidelines always call for changing default passwords as any password left on the factory preset is considered low hanging fruit, essentially just waiting to be abused by attackers to gain unauthorized access. Frameworks such as Cyber Essentials, PCI DSS, and UK Gov ITHC enforce this practice as one of their test requirements during an audit. The scenario below shows why it is part of a best practice to change default passwords as it could lead to a more severe issue.