... and the like can be sources of information to unauthorized persons. This kind of waste can be made secure by the use of shredders or locked trash barrels. Internal Controls Internal controls are controls that are planned as part of the computer system. One example is a transaction log. This is a file of all accesses or attempted accesses to certain data. Auditor Checks Most companies have auditors go over the financial books. In the course of their duties, auditors frequently review computer programs and data. From a data security standpoint, auditors might also check to see who has accessed data during periods when that data is not usually used. Today auditors can use off-the-shelf audit software, programs that assess the validity and accuracy of the system's operations and output. Applicant Screening The weakest link in any computer security system is the people in it. At the very least, employers ...

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