Misconfiguration is an insecure or unintended setting in a system, application, network, cloud resource, or identity control. Examples include publicly accessible storage, default credentials, overly broad permissions, exposed management interfaces, unnecessary services, and weak encryption settings. Attackers can discover these conditions through scanning or by abusing access they already possess; depending on the asset and data involved, the result may be unauthorized access, data exposure, or expanded control of connected systems.
The main defense is to define and enforce secure configuration baselines: disable unused features, remove default accounts and secrets, restrict network exposure, apply least privilege, and protect sensitive data with appropriate access controls and encryption. Review configurations before deployment and monitor for drift afterward, including in infrastructure managed as code. Prioritize findings by internet exposure, privilege, data sensitivity, and exploitability, then verify that remediation actually restored the intended state.