March 2022
Intermediate to advanced
682 pages
22h 58m
English
Content preview from Databases Illuminated, 4th Edition
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8.5 Security Logs and Audit Trails
Another important security tool is the security log, which is a journal that keeps a record of all attempted security violations. The violation can be simply recorded in the log, or it can trigger an immediate message to the system operator or to the DBA. Knowing about the existence of the security log can be a deterrent in itself. If the DBA suspects that data is being compromised without triggering security log entries, it is possible to set up an audit trail. Such an auditing system records all access to the database, keeping information about the user who requested the access, the operation performed, the workstation used, the exact time of occurrence, the data item, its old value, and its new value, if ...
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