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398     PART 4  Accounting


                                        These objectives were originally taken from Statements on Auditing Standards
                                     No. 1 (SAS No. 1), Section 320.28, and were incorporated in Section 13(b) of the 1934
                                     Act. Consequently, the management and employees of a public company may be
                                     civilly and criminally liable under the federal securities laws for failing to maintain
                                     a sufficient internal control structure.




                                     Computer Security of Accounting Information
                                     From watching movies and television shows, you might think that the greatest
                                     threat to computer security is intentional sabotage or unauthorized access to data
                                     or equipment. For most organizations this is simply not reality. There are five basic
                                     threats to security.
                                          Natural disasters
                                          Dishonest employees
                                          Disgruntled employees
                                          Persons external to the organization
                                          Unintentional errors and omissions
                                     The extent to which each of these threats is actually realized is shown in Exhibit 11.8.
        EXHIBIT 11.8                                 Unintentional errors and omissions cause the great majority of
                                                  the problems concerning computer security. Errors and omissions
        Threats to Computer Security of           are particularly prevalent in systems of sloppy design, implementa-
        Accounting Information
                                                  tion, and operation. On the other hand, if the systems development
        External persons 5%                       process is done properly, errors and omissions will be minimized.
                                                  An effective internal control structure is an integral part of any reli-
        Natural disaster 8%
                                                  able information system.
        Disgruntled                                  A key to computer security and the success of any control
        employees 10%
                                                  structure is the people of the organization. Systems development
        Dishonest                    Human        is most effective when the users are involved and most likely to fail
        employees 10%              errors 67%     when they are not. To develop effective computer security, man-
                                                  agement should consider the following positive steps:
                                                  1. Design controls and security techniques to ensure that all access
                                                    to and use of the information system can be traced back to the
                                                    user.
                                     2. Restrict access by users to the parts of the system directly related to
                                        their jobs.
                                     3. Conduct periodic security training.
                                     4. Assign an individual or committee to administer system security in an inde-
                                        pendent manner.
                                      5. Clearly communicate and consistently enforce security policies and procedures.
                                        A primary motive for a well-designed set of internal controls is to support the
                                     fiscal management capabilities of the firm’s officers and employees. Inadequate
                                     internal controls can severely hinder the fiscal management capabilities of officers
                                     and employees and place them in a position where they may be unduly tempted to
                                     become engaged in questionable activities and accounting practices. Chaotic
                                     accounting and fiscal management conditions resulting from inadequate controls
                                     place officers and employees under unnecessary conditions of stress. This can be
                                     expected to impair their mental well-being and task effectiveness. Assuming that
                                     officers and employees are honest, strong controls should be provided to guard
                                     them from suspicion and false accusations.


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