Most access violations are: 

Answer options:

A. Accidental
B. Caused by internal hackers
C. Caused by external hackers
D. Related to Internet

A

The most likely source of exposure is from the uninformed, accidental or unknowing person, although the greatest impact may be from those with malicious or fraudulent intent. Source: Information Systems Audit and Control Association, Certified Information Systems Auditor 2002 review manual, Chapter 4: Protection of Information Assets (page 192).