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© 2008 Prentice Hall Business Publishing     Accounting Information Systems, 11/e    Romney/Steinbart

128 of 151

OBJECTIVE 6: DATA FILES

Control procedures

Secure file library and restrictions on physical access to data files

Logical access controls using passwords and access control matrix

Proper use of file labels and write-protection mechanisms

Concurrent update controls

Encryption of highly confidential data

Use of virus protection software

Maintenance of backup copies of all data files in an off-site location

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