You are managing a multi-million dollar project, and discover several critical pieces of data in the project information repository have been modified without authorization. What should you do?
A. Determine the extent of the data breach, and implement security procedures to prevent a recurrence.
B. Determine the extent of the data breach and notify the appropriate project and company staff of the incident.
C. Determine the extent of the data breach, and restore the modified data from a backup.
D. Determine the extent of the data breach, and setup auditing to track further unauthorized access.