What is a recommended action if sensitive data has been compromised by unauthorized access?

Identifying the breach method and reinforcing security measures to prevent recurrence is the most appropriate action when sensitive data has been compromised. This approach focuses on understanding how the unauthorized access occurred, which is critical for addressing vulnerabilities in the current security posture. By analyzing the breach, organizations can deploy stronger security controls, implement best practices, and mitigate the risk of future incidents.

This proactive strategy emphasizes continuous improvement in security protocols and preparedness, ensuring that lessons learned from the incident are applied to guard against similar threats.

While notifying users and offering credit monitoring may seem beneficial, it primarily addresses the aftermath rather than preventing future occurrences. Similarly, a company-wide password reset might not directly resolve the underlying cause of the breach. Reporting to law enforcement prior to an internal review can further complicate recovery efforts and may not be necessary unless specific legal requirements dictate such action. Hence, focusing on identifying the breach and fortifying security measures is the best course of action.