Data leaks are most likely to cause reputational damage because they expose customer, employee, financial, intellectual property, or regulated information to unauthorized parties. Public disclosure of sensitive data can destroy customer trust, trigger regulatory investigations, create legal liability, and attract negative media attention. Open ports and unpatched vulnerabilities are security weaknesses, but they are not automatically reputational events unless exploited or disclosed. Low availability can harm service reliability, but reputational impact is usually strongest when confidentiality is breached and stakeholders believe the company failed to protect private information. In Security+ risk terminology, reputational impact is a business impact category, and data exposure is one of the clearest causes of that impact.